#638517#638517

#638517 is a mid, vivid yellow-green. Relative luminance 0.195; OKLCH L 57.0% C 0.137 H 126.2°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#638517
RGB	rgb(99, 133, 23)
HSL	hsl(79, 71%, 31%)
HSV	hsv(79, 83%, 52%)
CMYK	cmyk(25.6%, 0%, 82.7%, 47.8%)
CIE-LAB	lab(51.25, -27.81, 50.31)
CIE-LCH	lch(51.25, 57.48, 118.93°)
OKLab	oklab(57.04% -0.0807 0.1102)
OKLCH	oklch(57.04% 0.137 126.2)
XYZ	xyz(13.6879, 19.4893, 3.8511)
Luminance	0.1949 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638517 #391785

analogous

#857017 #638517 #2C8517

triadic

#638517 #176385 #851763

tetradic

#638517 #178570 #391785 #85172C

square

#638517 #178570 #391785 #85172C

split-complementary

#638517 #172C85 #701785

monochromatic

#151D05 #3C510E #638517 #8AB920 #AADD3A

Accessibility & contrast

On white

4.29

#638517 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#638517 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638517

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638517	#FFFFFF	#000000	##000000
##638517	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C7B00

Deuteranopia (green-blind)

#887A23

Tritanopia (blue-blind)

#687E71

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #638517;
/* rgb */ color: rgb(99, 133, 23);
/* oklch */ color: oklch(57.0% 0.137 126.2);

Tailwind

colors: {
  custom: {
    50: '#93a85f',
    500: '#638517',
    950: '#000000',
  },
}

SCSS

$custom: #638517;
$custom-light: #93a85f;
$custom-dark: #000000;

JSON

{
  "hex": "#638517",
  "rgb": {
    "r": 99,
    "g": 133,
    "b": 23
  },
  "hsl": {
    "h": 78.545,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.57038,
    "c": 0.13656,
    "h": 126.2
  },
  "luminance": 0.1949
}

Semantic roles & 50–950 ramp

primary

#638517

secondary

#653FB9

accent

#3BED72

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #638517

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

Preview Lab → · Contrast checker → · Palette generator →