#639928#639928

#639928 is a light, vivid yellow-green. Relative luminance 0.256; OKLCH L 62.3% C 0.153 H 131.9°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#639928
RGB	rgb(99, 153, 40)
HSL	hsl(89, 59%, 38%)
HSV	hsv(89, 74%, 60%)
CMYK	cmyk(35.3%, 0%, 73.9%, 40%)
CIE-LAB	lab(57.64, -36.16, 50.63)
CIE-LCH	lch(57.64, 62.22, 125.53°)
OKLab	oklab(62.27% -0.1021 0.1136)
OKLCH	oklch(62.27% 0.153 131.9)
XYZ	xyz(16.9196, 25.5876, 6.0545)
Luminance	0.2559 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#639928 #5E2899

analogous

#999728 #639928 #2A9928

triadic

#639928 #286399 #992863

tetradic

#639928 #289997 #5E2899 #99282A

square

#639928 #289997 #5E2899 #99282A

split-complementary

#639928 #282A99 #972899

monochromatic

#24380F #44681B #639928 #82CA35 #A0D765

Accessibility & contrast

On white

3.43

#639928 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#639928 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #639928

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##639928	#FFFFFF	#000000	##000000
##639928	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A08D13

Deuteranopia (green-blind)

#988933

Tritanopia (blue-blind)

#649383

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #639928;
/* rgb */ color: rgb(99, 153, 40);
/* oklch */ color: oklch(62.3% 0.153 131.9);

Tailwind

colors: {
  custom: {
    50: '#94b76a',
    500: '#639928',
    950: '#000000',
  },
}

SCSS

$custom: #639928;
$custom-light: #94b76a;
$custom-dark: #000000;

JSON

{
  "hex": "#639928",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 40
  },
  "hsl": {
    "h": 88.673,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.62268,
    "c": 0.15276,
    "h": 131.9
  },
  "luminance": 0.25588
}

Semantic roles & 50–950 ramp

primary

#639928

secondary

#8C60BD

accent

#46E290

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1107

muted

#7E807A

Preview Lab

Preview with #639928

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

Preview Lab → · Contrast checker → · Palette generator →