#63531B#63531B

#63531B is a dark, moderate yellow. Relative luminance 0.089; OKLCH L 44.7% C 0.076 H 92.9°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#63531B
RGB	rgb(99, 83, 27)
HSL	hsl(47, 57%, 25%)
HSV	hsv(47, 73%, 39%)
CMYK	cmyk(0%, 16.2%, 72.7%, 61.2%)
CIE-LAB	lab(35.83, -0.35, 33.96)
CIE-LCH	lch(35.83, 33.96, 90.59°)
OKLab	oklab(44.67% -0.0039 0.0764)
OKLCH	oklch(44.67% 0.076 92.9)
XYZ	xyz(8.4371, 8.9188, 2.3138)
Luminance	0.0892 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63531B #1B2B63

analogous

#632F1B #63531B #4F631B

triadic

#63531B #1B6353 #531B63

tetradic

#63531B #1B632F #1B2B63 #631B4F

square

#63531B #1B632F #1B2B63 #631B4F

split-complementary

#63531B #1B4F63 #2F1B63

monochromatic

#181407 #332B0E #63531B #937B28 #C3A435

Accessibility & contrast

On white

7.54

#63531B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#63531B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63531B

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63531B	#FFFFFF	#000000	##FFFFFF
##63531B	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5214

Deuteranopia (green-blind)

#60561E

Tritanopia (blue-blind)

#6B4C47

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #63531b;
/* rgb */ color: rgb(99, 83, 27);
/* oklch */ color: oklch(44.7% 0.076 92.9);

Tailwind

colors: {
  custom: {
    50: '#92835b',
    500: '#63531b',
    950: '#000000',
  },
}

SCSS

$custom: #63531b;
$custom-light: #92835b;
$custom-dark: #000000;

JSON

{
  "hex": "#63531b",
  "rgb": {
    "r": 99,
    "g": 83,
    "b": 27
  },
  "hsl": {
    "h": 46.667,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.44672,
    "c": 0.07649,
    "h": 92.9
  },
  "luminance": 0.08918
}

Semantic roles & 50–950 ramp

primary

#63531B

secondary

#415598

accent

#69E047

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0A04

muted

#7E7C79

Preview Lab

Preview with #63531B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →