#635A1B#635A1B

#635A1B is a mid, moderate yellow. Relative luminance 0.100; OKLCH L 46.3% C 0.082 H 101.1°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#635A1B
RGB	rgb(99, 90, 27)
HSL	hsl(53, 57%, 25%)
HSV	hsv(53, 73%, 39%)
CMYK	cmyk(0%, 9.1%, 72.7%, 61.2%)
CIE-LAB	lab(37.92, -4.53, 36.11)
CIE-LCH	lch(37.92, 36.40, 97.14°)
OKLab	oklab(46.33% -0.0158 0.0809)
OKLCH	oklch(46.33% 0.082 101.1)
XYZ	xyz(9.0000, 10.0445, 2.5014)
Luminance	0.1004 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#635A1B #1B2463

analogous

#63361B #635A1B #48631B

triadic

#635A1B #1B635A #5A1B63

tetradic

#635A1B #1B6336 #1B2463 #631B48

square

#635A1B #1B6336 #1B2463 #631B48

split-complementary

#635A1B #1B4863 #361B63

monochromatic

#181607 #332E0E #635A1B #938628 #C3B135

Accessibility & contrast

On white

6.98

#635A1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#635A1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #635A1B

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##635A1B	#FFFFFF	#000000	##FFFFFF
##635A1B	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635712

Deuteranopia (green-blind)

#655B1F

Tritanopia (blue-blind)

#6B534D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #635a1b;
/* rgb */ color: rgb(99, 90, 27);
/* oklch */ color: oklch(46.3% 0.082 101.1);

Tailwind

colors: {
  custom: {
    50: '#92885b',
    500: '#635a1b',
    950: '#000000',
  },
}

SCSS

$custom: #635a1b;
$custom-light: #92885b;
$custom-dark: #000000;

JSON

{
  "hex": "#635a1b",
  "rgb": {
    "r": 99,
    "g": 90,
    "b": 27
  },
  "hsl": {
    "h": 52.5,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.4633,
    "c": 0.08248,
    "h": 101.1
  },
  "luminance": 0.10044
}

Semantic roles & 50–950 ramp

primary

#635A1B

secondary

#414C98

accent

#5BE047

background

#F9F8F5

surface

#F1EFE9

border

#CBCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #635A1B

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

Preview Lab → · Contrast checker → · Palette generator →