#636728#636728

#636728 is a mid, moderate yellow. Relative luminance 0.125; OKLCH L 49.6% C 0.086 H 112.5°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#636728
RGB	rgb(99, 103, 40)
HSL	hsl(64, 44%, 28%)
HSV	hsv(64, 61%, 40%)
CMYK	cmyk(3.9%, 0%, 61.2%, 59.6%)
CIE-LAB	lab(42.01, -11.06, 34.24)
CIE-LCH	lch(42.01, 35.98, 107.90°)
OKLab	oklab(49.63% -0.0327 0.0791)
OKLCH	oklch(49.63% 0.086 112.5)
XYZ	xyz(10.3791, 12.5066, 3.8743)
Luminance	0.1251 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636728 #2C2867

analogous

#674B28 #636728 #436728

triadic

#636728 #286367 #672863

tetradic

#636728 #28674B #2C2867 #672843

square

#636728 #28674B #2C2867 #672843

split-complementary

#636728 #284367 #4B2867

monochromatic

#151609 #393B17 #636728 #8D9339 #B4BB4F

Accessibility & contrast

On white

6.00

#636728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#636728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636728

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636728	#FFFFFF	#000000	##FFFFFF
##636728	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6221

Deuteranopia (green-blind)

#6F642C

Tritanopia (blue-blind)

#696159

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #636728;
/* rgb */ color: rgb(99, 103, 40);
/* oklch */ color: oklch(49.6% 0.086 112.5);

Tailwind

colors: {
  custom: {
    50: '#919265',
    500: '#636728',
    950: '#000000',
  },
}

SCSS

$custom: #636728;
$custom-light: #919265;
$custom-dark: #000000;

JSON

{
  "hex": "#636728",
  "rgb": {
    "r": 99,
    "g": 103,
    "b": 40
  },
  "hsl": {
    "h": 63.81,
    "s": 44.056,
    "l": 28.039
  },
  "oklch": {
    "l": 0.49626,
    "c": 0.08559,
    "h": 112.5
  },
  "luminance": 0.12506
}

Semantic roles & 50–950 ramp

primary

#636728

secondary

#56519A

accent

#54D45C

background

#F9F8F6

surface

#F1F0EB

border

#CBCBC6

text

#0D0D06

muted

#7E7D7A

Preview Lab

Preview with #636728

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

Preview Lab → · Contrast checker → · Palette generator →