#638D2F#638D2F

#638D2F is a mid, vivid yellow-green. Relative luminance 0.219; OKLCH L 59.3% C 0.132 H 130.2°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#638D2F
RGB	rgb(99, 141, 47)
HSL	hsl(87, 50%, 37%)
HSV	hsv(87, 67%, 55%)
CMYK	cmyk(29.8%, 0%, 66.7%, 44.7%)
CIE-LAB	lab(53.93, -30.12, 43.97)
CIE-LCH	lch(53.93, 53.29, 124.41°)
OKLab	oklab(59.26% -0.085 0.1007)
OKLCH	oklch(59.26% 0.132 130.2)
XYZ	xyz(15.1834, 21.9072, 6.1173)
Luminance	0.2191 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638D2F #592F8D

analogous

#8D882F #638D2F #348D2F

triadic

#638D2F #2F638D #8D2F63

tetradic

#638D2F #2F8D88 #592F8D #8D2F34

square

#638D2F #2F8D88 #592F8D #8D2F34

split-complementary

#638D2F #2F348D #882F8D

monochromatic

#233110 #435F20 #638D2F #83BB3E #A1CD69

Accessibility & contrast

On white

3.90

#638D2F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#638D2F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638D2F

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638D2F	#FFFFFF	#000000	##000000
##638D2F	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938323

Deuteranopia (green-blind)

#8E8036

Tritanopia (blue-blind)

#65877A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #638d2f;
/* rgb */ color: rgb(99, 141, 47);
/* oklch */ color: oklch(59.3% 0.132 130.2);

Tailwind

colors: {
  custom: {
    50: '#93ae6c',
    500: '#638d2f',
    950: '#000000',
  },
}

SCSS

$custom: #638d2f;
$custom-light: #93ae6c;
$custom-dark: #000000;

JSON

{
  "hex": "#638d2f",
  "rgb": {
    "r": 99,
    "g": 141,
    "b": 47
  },
  "hsl": {
    "h": 86.809,
    "s": 50,
    "l": 36.863
  },
  "oklch": {
    "l": 0.5926,
    "c": 0.13175,
    "h": 130.2
  },
  "luminance": 0.21908
}

Semantic roles & 50–950 ramp

primary

#638D2F

secondary

#8864B4

accent

#4EDA8C

background

#F9FAF6

surface

#F2F4EC

border

#CCCEC7

text

#0D1007

muted

#7E7F7A

Preview Lab

Preview with #638D2F

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

Preview Lab → · Contrast checker → · Palette generator →