#638011#638011

#638011 is a mid, vivid yellow-green. Relative luminance 0.181; OKLCH L 55.7% C 0.133 H 124.4°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#638011
RGB	rgb(99, 128, 17)
HSL	hsl(76, 77%, 28%)
HSV	hsv(76, 87%, 50%)
CMYK	cmyk(22.7%, 0%, 86.7%, 49.8%)
CIE-LAB	lab(49.66, -25.60, 50.55)
CIE-LCH	lch(49.66, 56.66, 116.86°)
OKLab	oklab(55.73% -0.0751 0.1097)
OKLCH	oklch(55.73% 0.133 124.4)
XYZ	xyz(12.9661, 18.1313, 3.3468)
Luminance	0.1813 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638011 #2E1180

analogous

#806511 #638011 #2B8011

triadic

#638011 #116380 #801163

tetradic

#638011 #118065 #2E1180 #80112B

square

#638011 #118065 #2E1180 #80112B

split-complementary

#638011 #112B80 #651180

monochromatic

#151B04 #394A0A #638011 #8DB618 #B2E329

Accessibility & contrast

On white

4.54

#638011 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#638011 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638011

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638011	#FFFFFF	#000000	##000000
##638011	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887700

Deuteranopia (green-blind)

#84761E

Tritanopia (blue-blind)

#68796D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #638011;
/* rgb */ color: rgb(99, 128, 17);
/* oklch */ color: oklch(55.7% 0.133 124.4);

Tailwind

colors: {
  custom: {
    50: '#93a55c',
    500: '#638011',
    950: '#000000',
  },
}

SCSS

$custom: #638011;
$custom-light: #93a55c;
$custom-dark: #000000;

JSON

{
  "hex": "#638011",
  "rgb": {
    "r": 99,
    "g": 128,
    "b": 17
  },
  "hsl": {
    "h": 75.676,
    "s": 76.552,
    "l": 28.431
  },
  "oklch": {
    "l": 0.55733,
    "c": 0.13294,
    "h": 124.4
  },
  "luminance": 0.18131
}

Semantic roles & 50–950 ramp

primary

#638011

secondary

#5837B6

accent

#35F366

background

#F9FAF5

surface

#F2F4E9

border

#CCCEC5

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #638011

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

Preview Lab → · Contrast checker → · Palette generator →