#638040#638040

#638040 is a mid, moderate yellow-green. Relative luminance 0.185; OKLCH L 56.2% C 0.097 H 129.1°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#638040
RGB	rgb(99, 128, 64)
HSL	hsl(87, 33%, 38%)
HSV	hsv(87, 50%, 50%)
CMYK	cmyk(22.7%, 0%, 50%, 49.8%)
CIE-LAB	lab(50.05, -21.97, 31.22)
CIE-LCH	lch(50.05, 38.18, 125.13°)
OKLab	oklab(56.18% -0.061 0.075)
OKLCH	oklch(56.18% 0.097 129.1)
XYZ	xyz(13.7900, 18.4609, 7.6863)
Luminance	0.1846 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638040 #5D4080

analogous

#807D40 #638040 #438040

triadic

#638040 #406380 #804063

tetradic

#638040 #40807D #5D4080 #804043

square

#638040 #40807D #5D4080 #804043

split-complementary

#638040 #404380 #7D4080

monochromatic

#242E17 #43572C #638040 #83A954 #A0BE7D

Accessibility & contrast

On white

4.48

#638040 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#638040 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638040

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638040	#FFFFFF	#000000	##000000
##638040	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85783B

Deuteranopia (green-blind)

#817644

Tritanopia (blue-blind)

#657B71

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #638040;
/* rgb */ color: rgb(99, 128, 64);
/* oklch */ color: oklch(56.2% 0.097 129.1);

Tailwind

colors: {
  custom: {
    50: '#91a576',
    500: '#638040',
    950: '#000000',
  },
}

SCSS

$custom: #638040;
$custom-light: #91a576;
$custom-dark: #000000;

JSON

{
  "hex": "#638040",
  "rgb": {
    "r": 99,
    "g": 128,
    "b": 64
  },
  "hsl": {
    "h": 87.188,
    "s": 33.333,
    "l": 37.647
  },
  "oklch": {
    "l": 0.5618,
    "c": 0.09664,
    "h": 129.1
  },
  "luminance": 0.18461
}

Semantic roles & 50–950 ramp

primary

#638040

secondary

#8B74A8

accent

#5EC98F

background

#F9FAF7

surface

#F1F4ED

border

#CBCEC8

text

#0D0F08

muted

#7E7F7B

Preview Lab

Preview with #638040

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

Preview Lab → · Contrast checker → · Palette generator →