#639C19#639C19

#639C19 is a light, vivid yellow-green. Relative luminance 0.265; OKLCH L 62.9% C 0.164 H 131.5°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#639C19
RGB	rgb(99, 156, 25)
HSL	hsl(86, 72%, 35%)
HSV	hsv(86, 84%, 61%)
CMYK	cmyk(36.5%, 0%, 84%, 38.8%)
CIE-LAB	lab(58.51, -38.29, 56.24)
CIE-LCH	lch(58.51, 68.03, 124.25°)
OKLab	oklab(62.95% -0.1088 0.1231)
OKLCH	oklch(62.95% 0.164 131.5)
XYZ	xyz(17.2094, 26.4991, 5.1276)
Luminance	0.2650 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#639C19 #52199C

analogous

#9C9319 #639C19 #219C19

triadic

#639C19 #19639C #9C1963

tetradic

#639C19 #199C93 #52199C #9C1921

square

#639C19 #199C93 #52199C #9C1921

split-complementary

#639C19 #19219C #93199C

monochromatic

#203308 #426711 #639C19 #84D121 #A1E24D

Accessibility & contrast

On white

3.33

#639C19 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#639C19 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #639C19

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##639C19	#FFFFFF	#000000	##000000
##639C19	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A38F00

Deuteranopia (green-blind)

#9B8B29

Tritanopia (blue-blind)

#659585

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #639c19;
/* rgb */ color: rgb(99, 156, 25);
/* oklch */ color: oklch(62.9% 0.164 131.5);

Tailwind

colors: {
  custom: {
    50: '#95b964',
    500: '#639c19',
    950: '#000000',
  },
}

SCSS

$custom: #639c19;
$custom-light: #95b964;
$custom-dark: #000000;

JSON

{
  "hex": "#639c19",
  "rgb": {
    "r": 99,
    "g": 156,
    "b": 25
  },
  "hsl": {
    "h": 86.107,
    "s": 72.376,
    "l": 35.49
  },
  "oklch": {
    "l": 0.62949,
    "c": 0.16429,
    "h": 131.5
  },
  "luminance": 0.265
}

Semantic roles & 50–950 ramp

primary

#639C19

secondary

#814CC4

accent

#39EF88

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1106

muted

#7E807A

Preview Lab

Preview with #639C19

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

Preview Lab → · Contrast checker → · Palette generator →