#638628#638628

#638628 is a mid, vivid yellow-green. Relative luminance 0.199; OKLCH L 57.4% C 0.128 H 127.7°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#638628
RGB	rgb(99, 134, 40)
HSL	hsl(82, 54%, 34%)
HSV	hsv(82, 70%, 53%)
CMYK	cmyk(26.1%, 0%, 70.1%, 47.5%)
CIE-LAB	lab(51.67, -27.30, 44.59)
CIE-LCH	lch(51.67, 52.28, 121.48°)
OKLab	oklab(57.41% -0.0779 0.101)
OKLCH	oklch(57.41% 0.128 127.7)
XYZ	xyz(14.0537, 19.8558, 5.0992)
Luminance	0.1986 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638628 #4B2886

analogous

#867A28 #638628 #348628

triadic

#638628 #286386 #862863

tetradic

#638628 #28867A #4B2886 #862834

square

#638628 #28867A #4B2886 #862834

split-complementary

#638628 #283486 #7A2886

monochromatic

#1D280C #40571A #638628 #86B536 #A3CE5B

Accessibility & contrast

On white

4.22

#638628 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#638628 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638628

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638628	#FFFFFF	#000000	##000000
##638628	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7D1A

Deuteranopia (green-blind)

#887A30

Tritanopia (blue-blind)

#678073

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #638628;
/* rgb */ color: rgb(99, 134, 40);
/* oklch */ color: oklch(57.4% 0.128 127.7);

Tailwind

colors: {
  custom: {
    50: '#92a968',
    500: '#638628',
    950: '#000000',
  },
}

SCSS

$custom: #638628;
$custom-light: #92a968;
$custom-dark: #000000;

JSON

{
  "hex": "#638628",
  "rgb": {
    "r": 99,
    "g": 134,
    "b": 40
  },
  "hsl": {
    "h": 82.34,
    "s": 54.023,
    "l": 34.118
  },
  "oklch": {
    "l": 0.57411,
    "c": 0.12753,
    "h": 127.7
  },
  "luminance": 0.19856
}

Semantic roles & 50–950 ramp

primary

#638628

secondary

#7957B3

accent

#4ADD81

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #638628

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

Preview Lab → · Contrast checker → · Palette generator →