#635B1B#635B1B

#635B1B is a mid, moderate yellow. Relative luminance 0.102; OKLCH L 46.6% C 0.083 H 102.1°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#635B1B
RGB	rgb(99, 91, 27)
HSL	hsl(53, 57%, 25%)
HSV	hsv(53, 73%, 39%)
CMYK	cmyk(0%, 8.1%, 72.7%, 61.2%)
CIE-LAB	lab(38.22, -5.11, 36.42)
CIE-LCH	lch(38.22, 36.78, 97.99°)
OKLab	oklab(46.57% -0.0175 0.0816)
OKLCH	oklch(46.57% 0.083 102.1)
XYZ	xyz(9.0849, 10.2143, 2.5297)
Luminance	0.1021 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#635B1B #1B2363

analogous

#63371B #635B1B #47631B

triadic

#635B1B #1B635B #5B1B63

tetradic

#635B1B #1B6337 #1B2363 #631B47

square

#635B1B #1B6337 #1B2363 #631B47

split-complementary

#635B1B #1B4763 #371B63

monochromatic

#181607 #332F0E #635B1B #938728 #C3B335

Accessibility & contrast

On white

6.90

#635B1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#635B1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #635B1B

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##635B1B	#FFFFFF	#000000	##FFFFFF
##635B1B	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645812

Deuteranopia (green-blind)

#665C1F

Tritanopia (blue-blind)

#6B544E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #635b1b;
/* rgb */ color: rgb(99, 91, 27);
/* oklch */ color: oklch(46.6% 0.083 102.1);

Tailwind

colors: {
  custom: {
    50: '#92895c',
    500: '#635b1b',
    950: '#000000',
  },
}

SCSS

$custom: #635b1b;
$custom-light: #92895c;
$custom-dark: #000000;

JSON

{
  "hex": "#635b1b",
  "rgb": {
    "r": 99,
    "g": 91,
    "b": 27
  },
  "hsl": {
    "h": 53.333,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.4657,
    "c": 0.08346,
    "h": 102.1
  },
  "luminance": 0.10214
}

Semantic roles & 50–950 ramp

primary

#635B1B

secondary

#414B98

accent

#58E047

background

#F9F8F5

surface

#F1EFE9

border

#CBCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #635B1B

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

Preview Lab → · Contrast checker → · Palette generator →