#636633#636633

#636633 is a mid, moderate yellow. Relative luminance 0.124; OKLCH L 49.5% C 0.072 H 111.7°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#636633
RGB	rgb(99, 102, 51)
HSL	hsl(64, 33%, 30%)
HSV	hsv(64, 50%, 40%)
CMYK	cmyk(2.9%, 0%, 50%, 60%)
CIE-LAB	lab(41.84, -9.42, 28.24)
CIE-LCH	lch(41.84, 29.77, 108.45°)
OKLab	oklab(49.53% -0.0268 0.0673)
OKLCH	oklch(49.53% 0.072 111.7)
XYZ	xyz(10.4947, 12.3946, 4.9709)
Luminance	0.1239 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636633 #363366

analogous

#664F33 #636633 #4A6633

triadic

#636633 #336366 #663363

tetradic

#636633 #33664F #363366 #66334A

square

#636633 #33664F #363366 #66334A

split-complementary

#636633 #334A66 #4F3366

monochromatic

#14140A #3B3D1F #636633 #8B8F47 #ACB163

Accessibility & contrast

On white

6.04

#636633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#636633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636633

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636633	#FFFFFF	#000000	##FFFFFF
##636633	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D622F

Deuteranopia (green-blind)

#6D6336

Tritanopia (blue-blind)

#69615A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #636633;
/* rgb */ color: rgb(99, 102, 51);
/* oklch */ color: oklch(49.5% 0.072 111.7);

Tailwind

colors: {
  custom: {
    50: '#91916c',
    500: '#636633',
    950: '#000000',
  },
}

SCSS

$custom: #636633;
$custom-light: #91916c;
$custom-dark: #000000;

JSON

{
  "hex": "#636633",
  "rgb": {
    "r": 99,
    "g": 102,
    "b": 51
  },
  "hsl": {
    "h": 63.529,
    "s": 33.333,
    "l": 30
  },
  "oklch": {
    "l": 0.49531,
    "c": 0.07249,
    "h": 111.7
  },
  "luminance": 0.12394
}

Semantic roles & 50–950 ramp

primary

#636633

secondary

#615E97

accent

#5EC965

background

#F9F8F6

surface

#F1F0EB

border

#CBCBC6

text

#0D0C07

muted

#7E7D7A

Preview Lab

Preview with #636633

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

Preview Lab → · Contrast checker → · Palette generator →