#638E1D#638E1D

#638E1D is a mid, vivid yellow-green. Relative luminance 0.221; OKLCH L 59.4% C 0.145 H 128.9°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#638E1D
RGB	rgb(99, 142, 29)
HSL	hsl(83, 66%, 34%)
HSV	hsv(83, 80%, 56%)
CMYK	cmyk(30.3%, 0%, 79.6%, 44.3%)
CIE-LAB	lab(54.12, -31.79, 51.07)
CIE-LCH	lch(54.12, 60.16, 121.90°)
OKLab	oklab(59.38% -0.0911 0.1128)
OKLCH	oklch(59.38% 0.145 128.9)
XYZ	xyz(15.0403, 22.0869, 4.6329)
Luminance	0.2209 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638E1D #481D8E

analogous

#8E801D #638E1D #2A8E1D

triadic

#638E1D #1D638E #8E1D63

tetradic

#638E1D #1D8E80 #481D8E #8E1D2A

square

#638E1D #1D8E80 #481D8E #8E1D2A

split-complementary

#638E1D #1D2A8E #801D8E

monochromatic

#1C2808 #405B13 #638E1D #86C127 #A4DA4B

Accessibility & contrast

On white

3.88

#638E1D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#638E1D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638E1D

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638E1D	#FFFFFF	#000000	##000000
##638E1D	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#958300

Deuteranopia (green-blind)

#8F8029

Tritanopia (blue-blind)

#668779

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #638e1d;
/* rgb */ color: rgb(99, 142, 29);
/* oklch */ color: oklch(59.4% 0.145 128.9);

Tailwind

colors: {
  custom: {
    50: '#93af63',
    500: '#638e1d',
    950: '#000000',
  },
}

SCSS

$custom: #638e1d;
$custom-light: #93af63;
$custom-dark: #000000;

JSON

{
  "hex": "#638e1d",
  "rgb": {
    "r": 99,
    "g": 142,
    "b": 29
  },
  "hsl": {
    "h": 82.832,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.59376,
    "c": 0.14497,
    "h": 128.9
  },
  "luminance": 0.22087
}

Semantic roles & 50–950 ramp

primary

#638E1D

secondary

#764ABD

accent

#3FE980

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #638E1D

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

Preview Lab → · Contrast checker → · Palette generator →