#635E1B#635E1B

#635E1B is a mid, moderate yellow. Relative luminance 0.107; OKLCH L 47.3% C 0.086 H 105.0°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#635E1B
RGB	rgb(99, 94, 27)
HSL	hsl(56, 57%, 25%)
HSV	hsv(56, 73%, 39%)
CMYK	cmyk(0%, 5.1%, 72.7%, 61.2%)
CIE-LAB	lab(39.13, -6.87, 37.34)
CIE-LCH	lch(39.13, 37.97, 100.42°)
OKLab	oklab(47.29% -0.0224 0.0835)
OKLCH	oklch(47.29% 0.087 105)
XYZ	xyz(9.3465, 10.7375, 2.6169)
Luminance	0.1074 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#635E1B #1B2063

analogous

#633A1B #635E1B #44631B

triadic

#635E1B #1B635E #5E1B63

tetradic

#635E1B #1B633A #1B2063 #631B44

square

#635E1B #1B633A #1B2063 #631B44

split-complementary

#635E1B #1B4463 #3A1B63

monochromatic

#181707 #33300E #635E1B #938C28 #C3B935

Accessibility & contrast

On white

6.67

#635E1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#635E1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #635E1B

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##635E1B	#FFFFFF	#000000	##FFFFFF
##635E1B	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#675A11

Deuteranopia (green-blind)

#685E1F

Tritanopia (blue-blind)

#6B5751

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #635e1b;
/* rgb */ color: rgb(99, 94, 27);
/* oklch */ color: oklch(47.3% 0.086 105.0);

Tailwind

colors: {
  custom: {
    50: '#928b5c',
    500: '#635e1b',
    950: '#000000',
  },
}

SCSS

$custom: #635e1b;
$custom-light: #928b5c;
$custom-dark: #000000;

JSON

{
  "hex": "#635e1b",
  "rgb": {
    "r": 99,
    "g": 94,
    "b": 27
  },
  "hsl": {
    "h": 55.833,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.47294,
    "c": 0.0865,
    "h": 105
  },
  "luminance": 0.10737
}

Semantic roles & 50–950 ramp

primary

#635E1B

secondary

#414798

accent

#52E047

background

#F9F8F5

surface

#F1F0E9

border

#CBCBC5

text

#0D0C04

muted

#7E7D79

Preview Lab

Preview with #635E1B

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

Preview Lab → · Contrast checker → · Palette generator →