Color Directory/Red Ochre

Red Ochre (#913831)

Luminance: 9% · Nearest standard name: Red Ochre

RED OCHRE
#913831
rgb(145, 56, 49) · hsl(4°, 49%, 38%)
HEX#913831
RGB145, 56, 49
HSL4°, 49%, 38%
HSV / HSB4°, 66%, 57%
CMYK (Print)0%, 61%, 66%, 43%

Color Harmonies

Complementary

#913831#318A90

Analogous

#90315B#913831#906731

Triadic

#913831#319038#383190

Tints & Shades

Lighter Tints
Darker Shades

WCAG 2.2 Contrast Verification

Against White (#FFFFFF)7.46:1

Sample text rendered with #913831 on white

AA Normal: PASSAA Large: PASS
Against Dark (#0F172A)2.39:1

Sample text rendered with #913831 on dark

AA Normal: FAILAA Large: FAIL
Comprehensive Color Profile & Design Architecture

The Complete Color Guide to Red Ochre (#913831)

Red Ochre (#913831) is a distinct shade within the Rose & Red chromatic spectrum. Characterized by an optical luminance of 9% and a warm 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#913831
RGB Space145, 56, 49
HSL Values4°, 49%, 38%
HSV / HSB4°, 66%, 57%
CMYK Ink0%, 61%, 66%, 43%
TemperatureWarm

Optical Color Harmony Formulas for Red Ochre

Geometric intervals calculated from #913831 on the 360-degree color wheel.

Direct Polar (180°)#318A90

Complementary Harmony

Pairs Red Ochre with its polar opposite (#318A90) to create maximum optical contrast, perfect for high-converting call-to-action buttons.

Adjacent (±30°)#90315B · #906731

Analogous Harmony

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

Split Angles (150° / 210°)#319067 · #315B90

Split-Complementary

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

Triangular (120°)#319038 · #383190

Triadic Harmony

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

Rectangular (90°)#5B9031 · #318A90 · #673190

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 Red Ochre

Lock #913831 inside our interactive generator to calculate live matching palettes in real time.

Launch Palette Generator

The 60-30-10 UI Implementation Role for Red Ochre

Recommended proportional volume and semantic interface assignment.

Recommended Assignment: Interactive Brand Accent (10% Volume)

With a saturation of 49% and lightness of 38%, Red Ochre (#913831) 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

Color Psychology & Industry Alignment

Strategic cognitive triggers and target sector recommendations.

Cognitive & Emotional Perception

Radiates high energy, urgency, passionate emotion, and dramatic visual power. Commands immediate human attention.

Optimal Industry Verticals

E-Commerce Flash Sales, Fitness Apparel, Gaming HUDs, Food & Beverage. Combining Red Ochre with intentional neutral whitespace reinforces authority and conversion clarity.

Production Code Tokens for Red Ochre

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

CSS Custom Properties (:root)Vanilla CSS
:root {
  --color-913831: #913831;
  --color-913831-rgb: 145, 56, 49;
  --color-913831-hsl: 4deg 49% 38%;
}
tailwind.config.jsTailwind CSS
module.exports = {
  theme: {
    extend: {
      colors: {
        '913831': '#913831',
      }
    }
  }
};

Frequently Asked Questions About Red Ochre (#913831)

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

What are the exact digital and print color codes for Red Ochre (#913831)?
Red Ochre is defined by the HEX code #913831. Its digital screen RGB coordinates are R:145, G:56, B:49. Its cylindrical HSL values are Hue:4°, Saturation:49%, Lightness:38%. In HSV/HSB format, it is 4°, 66%, 57%. For four-color CMYK process printing, its ink percentages are C:0%, M:61%, Y:66%, K:43%.
Does Red Ochre (#913831) pass WCAG 2.2 accessibility standards for text readability?
Against a pure white (#FFFFFF) background, Red Ochre achieves a contrast ratio of 7.46:1 (Passing WCAG AA for normal body text, and Passing for large headings). Against dark slate (#0F172A), it achieves a contrast ratio of 2.39:1 (Failing WCAG AA).
What is the direct complementary color for Red Ochre (#913831)?
The exact 180-degree optical complementary color for #913831 is #318A90. When placed side-by-side, #913831 and #318A90 create maximum visual tension and high click-through conversion rates.
What is the recommended role for Red Ochre in the 60-30-10 UI design rule?
With a saturation of 49% and lightness of 38%, Red Ochre (#913831) 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 Red Ochre into Tailwind CSS and CSS variables?
You can define Red Ochre in CSS custom properties as ':root { --color-custom: #913831; }' or paste it into your 'tailwind.config.js' file under 'theme.extend.colors'. You can also generate full palettes containing Red Ochre using our interactive Color Palette Generator.
Which color family does Red Ochre (#913831) belong to?
Red Ochre belongs to the Rose & Red family (Warm spectrum). You can explore full tonal ramps and curated palettes in our Rose & Red Color Guide.