#663F31

#663F31

Overview

#663F31 is a warm, dark color. In RGB it is 102, 63, 49, in HSL 15.8°, 35.1%, 29.6%, and in CMYK 0.0%, 38.2%, 52.0%, 60.0%. The nearest named color is RAL 8011 Nut Brown.

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Color Values

HEX

#663F31

RGB

102, 63, 49

HSL

15.8, 35.1%, 29.6%

HSV

15.8, 52.0%, 40.0%

CMYK

0.0%, 38.2%, 52.0%, 60.0%

OKLCH

0.4099 0.0596 40.5

Properties

Color Psychology

Dark browns like chocolate and espresso project richness, indulgence, and masculine elegance. They carry the warmth of wood-paneled studies and aged leather, evoking comfort and established tradition. These deep tones suggest solidity, dependability, and mature sophistication.

Design Usage

Dark brown excels as a text color alternative to pure black, providing warmth and reducing visual harshness. It suits coffee roasters, chocolate brands, and heritage accessories with a tradition focus. Pair it with cream, gold, or burnt orange for a luxurious, warm-toned design system.

Color Harmonies

Color Blindness Simulation

CSS Usage

background-color: #663F31;
color: #663F31;
border-color: #663F31;
Nearest Tailwind: Yellow 950 #422006

Tailwind Shades

Contrast Checker

Text on white

9.05:1

AA Pass AAA Pass

Text on black

2.32:1

AA Fail AAA Fail

Compare With

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Frequently Asked Questions

What are the RGB, HSL, and CMYK values of #663F31?

RGB(102, 63, 49) · HSL(15.8, 35.1%, 29.6%) · CMYK(0.0%, 38.2%, 52.0%, 60.0%)

Does #663F31 meet WCAG contrast on white?

9.05:1 — WCAG AA Pass, AAA Pass for normal text.

What text color is readable on #663F31?

Use FFFFFF text on a #663F31 background; contrast on black is 2.32:1.