#636F19#636F19

#636F19 is a mid, moderate yellow. Relative luminance 0.141; OKLCH L 51.5% C 0.108 H 117.4°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#636F19
RGB	rgb(99, 111, 25)
HSL	hsl(68, 63%, 27%)
HSV	hsv(68, 77%, 44%)
CMYK	cmyk(10.8%, 0%, 77.5%, 56.5%)
CIE-LAB	lab(44.36, -16.49, 43.27)
CIE-LCH	lch(44.36, 46.31, 110.86°)
OKLab	oklab(51.47% -0.0495 0.0957)
OKLCH	oklch(51.47% 0.108 117.4)
XYZ	xyz(11.0058, 14.0918, 3.0597)
Luminance	0.1409 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636F19 #25196F

analogous

#6F5019 #636F19 #386F19

triadic

#636F19 #19636F #6F1963

tetradic

#636F19 #196F50 #25196F #6F1938

square

#636F19 #196F50 #25196F #6F1938

split-complementary

#636F19 #19386F #50196F

monochromatic

#161906 #363D0E #636F19 #90A124 #BBD132

Accessibility & contrast

On white

5.50

#636F19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#636F19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636F19

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636F19	#FFFFFF	#000000	##FFFFFF
##636F19	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776907

Deuteranopia (green-blind)

#766920

Tritanopia (blue-blind)

#6A685F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #636f19;
/* rgb */ color: rgb(99, 111, 25);
/* oklch */ color: oklch(51.5% 0.108 117.4);

Tailwind

colors: {
  custom: {
    50: '#92985d',
    500: '#636f19',
    950: '#000000',
  },
}

SCSS

$custom: #636f19;
$custom-light: #92985d;
$custom-dark: #000000;

JSON

{
  "hex": "#636f19",
  "rgb": {
    "r": 99,
    "g": 111,
    "b": 25
  },
  "hsl": {
    "h": 68.372,
    "s": 63.235,
    "l": 26.667
  },
  "oklch": {
    "l": 0.51474,
    "c": 0.10773,
    "h": 117.4
  },
  "luminance": 0.14092
}

Semantic roles & 50–950 ramp

primary

#636F19

secondary

#4E3FA4

accent

#42E659

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #636F19

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

Preview Lab → · Contrast checker → · Palette generator →