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Color Directory/Slate 400

Slate 400 (#94A3B8)

Luminance: 36% · Nearest standard name: Slate 400

Generate Around This Color
SLATE 400
#94A3B8
rgb(148, 163, 184) · hsl(215°, 20%, 65%)
HEX#94A3B8
RGB148, 163, 184
HSL215°, 20%, 65%
HSV / HSB215°, 20%, 72%
CMYK (Print)20%, 11%, 0%, 28%

Color Harmonies

Complementary

#94A3B8#B8A994

Analogous

#94B5B8#94A3B8#9794B8

Triadic

#94A3B8#B894A3#A3B894

Tints & Shades

Lighter Tints
Darker Shades

WCAG 2.2 Contrast Verification

Against White (#FFFFFF)2.56:1

Sample text rendered with #94A3B8 on white

AA Normal: FAILAA Large: FAIL
Against Dark (#0F172A)6.96:1

Sample text rendered with #94A3B8 on dark

AA Normal: PASSAA Large: PASS

Palettes Featuring Similar Tones

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#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
Cyber Glitch Protocol
GamingFuturisticNeon
Comprehensive Color Profile & Design Architecture

The Complete Color Guide to Slate 400 (#94A3B8)

Slate 400 (#94A3B8) is a distinct shade within the Blue chromatic spectrum. Characterized by an optical luminance of 36% 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#94A3B8
RGB Space148, 163, 184
HSL Values215°, 20%, 65%
HSV / HSB215°, 20%, 72%
CMYK Ink20%, 11%, 0%, 28%
TemperatureCool

Optical Color Harmony Formulas for Slate 400

Geometric intervals calculated from #94A3B8 on the 360-degree color wheel.

Direct Polar (180°)#B8A994

Complementary Harmony

Pairs Slate 400 with its polar opposite (#B8A994) to create maximum optical contrast, perfect for high-converting call-to-action buttons.

Adjacent (±30°)#94B5B8 · #9794B8

Analogous Harmony

Positions adjacent neighboring hues on either side of Slate 400 for serene, gentle, and organic visual transitions.

Split Angles (150° / 210°)#B89794 · #B5B894

Split-Complementary

Uses the two colors flanking the direct complement of Slate 400, offering rich visual variety without harsh chromatic vibration.

Triangular (120°)#B894A3 · #A3B894

Triadic Harmony

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

Rectangular (90°)#B894B5 · #B8A994 · #94B897

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 Slate 400

Lock #94A3B8 inside our interactive generator to calculate live matching palettes in real time.

Launch Palette Generator

The 60-30-10 UI Implementation Role for Slate 400

Recommended proportional volume and semantic interface assignment.

Recommended Assignment: Structural Surface & Border Tone (30% Volume)

Because of its muted, low-chroma saturation (20%), Slate 400 (#94A3B8) excels as a secondary surface color for container cards, table borders, navigation sidebars, and divider strokes.

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 Slate 400 with intentional neutral whitespace reinforces authority and conversion clarity.

Production Code Tokens for Slate 400

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

CSS Custom Properties (:root)Vanilla CSS
:root {
  --color-94a3b8: #94A3B8;
  --color-94a3b8-rgb: 148, 163, 184;
  --color-94a3b8-hsl: 215deg 20% 65%;
}
tailwind.config.jsTailwind CSS
module.exports = {
  theme: {
    extend: {
      colors: {
        '94a3b8': '#94A3B8',
      }
    }
  }
};

Explore Related Color Tools for Slate 400

Continue developing your color system with specialized design tools.

Palette Generator

Generate harmonious 5-color palettes anchored to Slate 400.

Launch Tool

WCAG Contrast Checker

Verify Level AA and AAA readability for Slate 400 against any background.

Check Contrast

Shades & Tints Scale

Generate a full 10-step tonal scale from 50 to 900 for Slate 400.

Expand Scale

CSS Gradient Generator

Create linear and radial gradients blending Slate 400 with complementary hues.

Build Gradients

Frequently Asked Questions About Slate 400 (#94A3B8)

Authoritative answers covering Slate 400 color codes, WCAG contrast compliance, and UI design systems.

What are the exact digital and print color codes for Slate 400 (#94A3B8)?
Slate 400 is defined by the HEX code #94A3B8. Its digital screen RGB coordinates are R:148, G:163, B:184. Its cylindrical HSL values are Hue:215°, Saturation:20%, Lightness:65%. In HSV/HSB format, it is 215°, 20%, 72%. For four-color CMYK process printing, its ink percentages are C:20%, M:11%, Y:0%, K:28%.
Does Slate 400 (#94A3B8) pass WCAG 2.2 accessibility standards for text readability?
Against a pure white (#FFFFFF) background, Slate 400 achieves a contrast ratio of 2.56:1 (Failing WCAG AA for normal body text, and Failing for large headings). Against dark slate (#0F172A), it achieves a contrast ratio of 6.96:1 (Passing WCAG AA).
What is the direct complementary color for Slate 400 (#94A3B8)?
The exact 180-degree optical complementary color for #94A3B8 is #B8A994. When placed side-by-side, #94A3B8 and #B8A994 create maximum visual tension and high click-through conversion rates.
What is the recommended role for Slate 400 in the 60-30-10 UI design rule?
Because of its muted, low-chroma saturation (20%), Slate 400 (#94A3B8) excels as a secondary surface color for container cards, table borders, navigation sidebars, and divider strokes.
How can I copy and export Slate 400 into Tailwind CSS and CSS variables?
You can define Slate 400 in CSS custom properties as ':root { --color-custom: #94A3B8; }' or paste it into your 'tailwind.config.js' file under 'theme.extend.colors'. You can also generate full palettes containing Slate 400 using our interactive Color Palette Generator.
Which color family does Slate 400 (#94A3B8) belong to?
Slate 400 belongs to the Blue family (Cool spectrum). You can explore full tonal ramps and curated palettes in our Blue Color Guide.