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Color Directory/Ultramarine

Ultramarine (#120A8F)

Luminance: 2% · Nearest standard name: Ultramarine

Generate Around This Color
ULTRAMARINE
#120A8F
rgb(18, 10, 143) · hsl(244°, 87%, 30%)
HEX#120A8F
RGB18, 10, 143
HSL244°, 87%, 30%
HSV / HSB244°, 93%, 56%
CMYK (Print)87%, 93%, 0%, 44%

Color Harmonies

Complementary

#120A8F#868F0A

Analogous

#0A448F#120A8F#550A8F

Triadic

#120A8F#8F130A#0A8F13

Tints & Shades

Lighter Tints
Darker Shades

WCAG 2.2 Contrast Verification

Against White (#FFFFFF)14.33:1

Sample text rendered with #120A8F on white

AA Normal: PASSAA Large: PASS
Against Dark (#0F172A)1.25:1

Sample text rendered with #120A8F on dark

AA Normal: FAILAA Large: FAIL

Palettes Featuring Similar Tones

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#2563EBCopy
#38BDF8Copy
#F8FAFCCopy
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#2B0938Copy
#6A0572Copy
#AB2E64Copy
#D85A52Copy
#F9A03FCopy
cp-featured-02Sunset
Malibu Dusk Glow
SunsetGradientCreative
#E76F51Copy
#F4A261Copy
#E9C46ACopy
#2A9D8FCopy
#264653Copy
cp-featured-03Vintage
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#050505Copy
#00FF66Copy
#00F0FFCopy
#FF0055Copy
#FFE600Copy
cp-featured-04Gaming
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GamingFuturisticNeon
Comprehensive Color Profile & Design Architecture

The Complete Color Guide to Ultramarine (#120A8F)

Ultramarine (#120A8F) is a distinct shade within the Blue chromatic spectrum. Characterized by an optical luminance of 2% and a cool color temperature, this tone plays a vital role across web applications, brand identities, and editorial typography. Discover its mathematical harmonies, accessibility metrics, UI engineering roles, and front-end code tokens.

Technical Colorimetry & Coordinate Breakdown

Exact mathematical values across digital display, print press, and human perceptual spaces.

HEX Code#120A8F
RGB Space18, 10, 143
HSL Values244°, 87%, 30%
HSV / HSB244°, 93%, 56%
CMYK Ink87%, 93%, 0%, 44%
TemperatureCool

Optical Color Harmony Formulas for Ultramarine

Geometric intervals calculated from #120A8F on the 360-degree color wheel.

Direct Polar (180°)#868F0A

Complementary Harmony

Pairs Ultramarine with its polar opposite (#868F0A) to create maximum optical contrast, perfect for high-converting call-to-action buttons.

Adjacent (±30°)#0A448F · #550A8F

Analogous Harmony

Positions adjacent neighboring hues on either side of Ultramarine for serene, gentle, and organic visual transitions.

Split Angles (150° / 210°)#8F550A · #448F0A

Split-Complementary

Uses the two colors flanking the direct complement of Ultramarine, offering rich visual variety without harsh chromatic vibration.

Triangular (120°)#8F130A · #0A8F13

Triadic Harmony

Forms an equilateral triangle on the color wheel, generating playful, dynamic energy when balanced against a neutral background.

Rectangular (90°)#8F0A44 · #868F0A · #0A8F55

Tetradic (Square) Harmony

A rich four-color scheme combining two complementary pairs, ideal for complex dashboards, gaming HUDs, and multi-tier charts.

Interactive Exploration

Build Palettes With Ultramarine

Lock #120A8F inside our interactive generator to calculate live matching palettes in real time.

Launch Palette Generator

The 60-30-10 UI Implementation Role for Ultramarine

Recommended proportional volume and semantic interface assignment.

Recommended Assignment: Interactive Brand Accent (10% Volume)

With a saturation of 87% and lightness of 30%, Ultramarine (#120A8F) acts as an attention-grabbing focal point. In user interfaces, reserve it for primary CTA buttons, active state indicators, and notification badges to draw user clicks immediately.

Light Mode SurfaceIdeal for buttons and badges
Dark Mode AdaptationDesaturate slightly for ambient glow
Tonal Expansion ScaleView 10-step design token ramp →

Color Psychology & Industry Alignment

Strategic cognitive triggers and target sector recommendations.

Cognitive & Emotional Perception

This color projects authority, intelligence, and calm dependability. Universally trusted across enterprise software and fintech products.

Optimal Industry Verticals

Fintech, Enterprise SaaS, Healthcare, Cloud Infrastructure. Combining Ultramarine with intentional neutral whitespace reinforces authority and conversion clarity.

Production Code Tokens for Ultramarine

Drop-in design system tokens for CSS, Tailwind CSS, and SCSS.

CSS Custom Properties (:root)Vanilla CSS
:root {
  --color-120a8f: #120A8F;
  --color-120a8f-rgb: 18, 10, 143;
  --color-120a8f-hsl: 244deg 87% 30%;
}
tailwind.config.jsTailwind CSS
module.exports = {
  theme: {
    extend: {
      colors: {
        '120a8f': '#120A8F',
      }
    }
  }
};

Explore Related Color Tools for Ultramarine

Continue developing your color system with specialized design tools.

Palette Generator

Generate harmonious 5-color palettes anchored to Ultramarine.

Launch Tool

WCAG Contrast Checker

Verify Level AA and AAA readability for Ultramarine against any background.

Check Contrast

Shades & Tints Scale

Generate a full 10-step tonal scale from 50 to 900 for Ultramarine.

Expand Scale

CSS Gradient Generator

Create linear and radial gradients blending Ultramarine with complementary hues.

Build Gradients

Frequently Asked Questions About Ultramarine (#120A8F)

Authoritative answers covering Ultramarine color codes, WCAG contrast compliance, and UI design systems.

What are the exact digital and print color codes for Ultramarine (#120A8F)?
Ultramarine is defined by the HEX code #120A8F. Its digital screen RGB coordinates are R:18, G:10, B:143. Its cylindrical HSL values are Hue:244°, Saturation:87%, Lightness:30%. In HSV/HSB format, it is 244°, 93%, 56%. For four-color CMYK process printing, its ink percentages are C:87%, M:93%, Y:0%, K:44%.
Does Ultramarine (#120A8F) pass WCAG 2.2 accessibility standards for text readability?
Against a pure white (#FFFFFF) background, Ultramarine achieves a contrast ratio of 14.33:1 (Passing WCAG AA for normal body text, and Passing for large headings). Against dark slate (#0F172A), it achieves a contrast ratio of 1.25:1 (Failing WCAG AA).
What is the direct complementary color for Ultramarine (#120A8F)?
The exact 180-degree optical complementary color for #120A8F is #868F0A. When placed side-by-side, #120A8F and #868F0A create maximum visual tension and high click-through conversion rates.
What is the recommended role for Ultramarine in the 60-30-10 UI design rule?
With a saturation of 87% and lightness of 30%, Ultramarine (#120A8F) acts as an attention-grabbing focal point. In user interfaces, reserve it for primary CTA buttons, active state indicators, and notification badges to draw user clicks immediately.
How can I copy and export Ultramarine into Tailwind CSS and CSS variables?
You can define Ultramarine in CSS custom properties as ':root { --color-custom: #120A8F; }' or paste it into your 'tailwind.config.js' file under 'theme.extend.colors'. You can also generate full palettes containing Ultramarine using our interactive Color Palette Generator.
Which color family does Ultramarine (#120A8F) belong to?
Ultramarine belongs to the Blue family (Cool spectrum). You can explore full tonal ramps and curated palettes in our Blue Color Guide.