#638E2F#638E2F

#638E2F is a mid, vivid yellow-green. Relative luminance 0.222; OKLCH L 59.5% C 0.133 H 130.4°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#638E2F
RGB	rgb(99, 142, 47)
HSL	hsl(87, 50%, 37%)
HSV	hsv(87, 67%, 56%)
CMYK	cmyk(30.3%, 0%, 66.9%, 44.3%)
CIE-LAB	lab(54.24, -30.59, 44.30)
CIE-LCH	lch(54.24, 53.84, 124.62°)
OKLab	oklab(59.51% -0.0863 0.1014)
OKLCH	oklch(59.51% 0.133 130.4)
XYZ	xyz(15.3316, 22.2034, 6.1667)
Luminance	0.2220 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638E2F #5A2F8E

analogous

#8E8A2F #638E2F #338E2F

triadic

#638E2F #2F638E #8E2F63

tetradic

#638E2F #2F8E8A #5A2F8E #8E2F33

square

#638E2F #2F8E8A #5A2F8E #8E2F33

split-complementary

#638E2F #2F338E #8A2F8E

monochromatic

#233211 #436020 #638E2F #83BC3E #A0CE6A

Accessibility & contrast

On white

3.86

#638E2F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#638E2F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638E2F

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638E2F	#FFFFFF	#000000	##000000
##638E2F	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#948423

Deuteranopia (green-blind)

#8E8137

Tritanopia (blue-blind)

#65887A

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #638e2f;
/* rgb */ color: rgb(99, 142, 47);
/* oklch */ color: oklch(59.5% 0.133 130.4);

Tailwind

colors: {
  custom: {
    50: '#93af6c',
    500: '#638e2f',
    950: '#000000',
  },
}

SCSS

$custom: #638e2f;
$custom-light: #93af6c;
$custom-dark: #000000;

JSON

{
  "hex": "#638e2f",
  "rgb": {
    "r": 99,
    "g": 142,
    "b": 47
  },
  "hsl": {
    "h": 87.158,
    "s": 50.265,
    "l": 37.059
  },
  "oklch": {
    "l": 0.59515,
    "c": 0.13312,
    "h": 130.4
  },
  "luminance": 0.22204
}

Semantic roles & 50–950 ramp

primary

#638E2F

secondary

#8964B5

accent

#4EDA8D

background

#F9FAF6

surface

#F2F4EC

border

#CCCEC7

text

#0D1007

muted

#7E7F7A

Preview Lab

Preview with #638E2F

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

Preview Lab → · Contrast checker → · Palette generator →