#638F16#638F16

#638F16 is a mid, vivid yellow-green. Relative luminance 0.224; OKLCH L 59.6% C 0.150 H 128.8°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#638F16
RGB	rgb(99, 143, 22)
HSL	hsl(82, 73%, 32%)
HSV	hsv(82, 85%, 56%)
CMYK	cmyk(30.8%, 0%, 84.6%, 43.9%)
CIE-LAB	lab(54.40, -32.58, 53.39)
CIE-LCH	lch(54.40, 62.55, 121.39°)
OKLab	oklab(59.6% -0.0937 0.1166)
OKLCH	oklch(59.6% 0.15 128.8)
XYZ	xyz(15.1129, 22.3551, 4.2776)
Luminance	0.2235 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638F16 #42168F

analogous

#8F7E16 #638F16 #278F16

triadic

#638F16 #16638F #8F1663

tetradic

#638F16 #168F7E #42168F #8F1627

square

#638F16 #168F7E #42168F #8F1627

split-complementary

#638F16 #16278F #7E168F

monochromatic

#1A2506 #3E5A0E #638F16 #88C41E #A6E13E

Accessibility & contrast

On white

3.84

#638F16 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#638F16 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638F16

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638F16	#FFFFFF	#000000	##000000
##638F16	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#968400

Deuteranopia (green-blind)

#908125

Tritanopia (blue-blind)

#66887A

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #638f16;
/* rgb */ color: rgb(99, 143, 22);
/* oklch */ color: oklch(59.6% 0.150 128.8);

Tailwind

colors: {
  custom: {
    50: '#94b060',
    500: '#638f16',
    950: '#000000',
  },
}

SCSS

$custom: #638f16;
$custom-light: #94b060;
$custom-dark: #000000;

JSON

{
  "hex": "#638f16",
  "rgb": {
    "r": 99,
    "g": 143,
    "b": 22
  },
  "hsl": {
    "h": 81.818,
    "s": 73.333,
    "l": 32.353
  },
  "oklch": {
    "l": 0.59595,
    "c": 0.14953,
    "h": 128.8
  },
  "luminance": 0.22355
}

Semantic roles & 50–950 ramp

primary

#638F16

secondary

#6F3FC1

accent

#38F07B

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1005

muted

#7E7F7A

Preview Lab

Preview with #638F16

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

Preview Lab → · Contrast checker → · Palette generator →