#63591B#63591B

#63591B is a mid, moderate yellow. Relative luminance 0.099; OKLCH L 46.1% C 0.082 H 100.0°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#63591B
RGB	rgb(99, 89, 27)
HSL	hsl(52, 57%, 25%)
HSV	hsv(52, 73%, 39%)
CMYK	cmyk(0%, 10.1%, 72.7%, 61.2%)
CIE-LAB	lab(37.62, -3.94, 35.81)
CIE-LCH	lch(37.62, 36.02, 96.27°)
OKLab	oklab(46.09% -0.0141 0.0803)
OKLCH	oklch(46.09% 0.082 100)
XYZ	xyz(8.9162, 9.8769, 2.4735)
Luminance	0.0988 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63591B #1B2563

analogous

#63351B #63591B #49631B

triadic

#63591B #1B6359 #591B63

tetradic

#63591B #1B6335 #1B2563 #631B49

square

#63591B #1B6335 #1B2563 #631B49

split-complementary

#63591B #1B4963 #351B63

monochromatic

#181607 #332E0E #63591B #938428 #C3AF35

Accessibility & contrast

On white

7.06

#63591B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#63591B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63591B

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63591B	#FFFFFF	#000000	##FFFFFF
##63591B	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625612

Deuteranopia (green-blind)

#655A1F

Tritanopia (blue-blind)

#6B524C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #63591b;
/* rgb */ color: rgb(99, 89, 27);
/* oklch */ color: oklch(46.1% 0.082 100.0);

Tailwind

colors: {
  custom: {
    50: '#92875b',
    500: '#63591b',
    950: '#000000',
  },
}

SCSS

$custom: #63591b;
$custom-light: #92875b;
$custom-dark: #000000;

JSON

{
  "hex": "#63591b",
  "rgb": {
    "r": 99,
    "g": 89,
    "b": 27
  },
  "hsl": {
    "h": 51.667,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.46091,
    "c": 0.08154,
    "h": 100
  },
  "luminance": 0.09877
}

Semantic roles & 50–950 ramp

primary

#63591B

secondary

#414D98

accent

#5DE047

background

#F9F8F5

surface

#F1EFE9

border

#CBCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #63591B

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

Preview Lab → · Contrast checker → · Palette generator →