#638017#638017

#638017 is a mid, vivid yellow-green. Relative luminance 0.182; OKLCH L 55.8% C 0.130 H 124.6°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#638017
RGB	rgb(99, 128, 23)
HSL	hsl(77, 70%, 30%)
HSV	hsv(77, 82%, 50%)
CMYK	cmyk(22.7%, 0%, 82%, 49.8%)
CIE-LAB	lab(49.68, -25.36, 48.88)
CIE-LCH	lch(49.68, 55.07, 117.42°)
OKLab	oklab(55.76% -0.074 0.1072)
OKLCH	oklch(55.76% 0.13 124.6)
XYZ	xyz(13.0196, 18.1527, 3.6283)
Luminance	0.1815 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638017 #341780

analogous

#806817 #638017 #2F8017

triadic

#638017 #176380 #801763

tetradic

#638017 #178068 #341780 #80172F

square

#638017 #178068 #341780 #80172F

split-complementary

#638017 #172F80 #681780

monochromatic

#141A05 #3B4C0E #638017 #8BB420 #AEDB36

Accessibility & contrast

On white

4.54

#638017 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#638017 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638017

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638017	#FFFFFF	#000000	##000000
##638017	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#887700

Deuteranopia (green-blind)

#847622

Tritanopia (blue-blind)

#68796D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #638017;
/* rgb */ color: rgb(99, 128, 23);
/* oklch */ color: oklch(55.8% 0.130 124.6);

Tailwind

colors: {
  custom: {
    50: '#93a55f',
    500: '#638017',
    950: '#000000',
  },
}

SCSS

$custom: #638017;
$custom-light: #93a55f;
$custom-dark: #000000;

JSON

{
  "hex": "#638017",
  "rgb": {
    "r": 99,
    "g": 128,
    "b": 23
  },
  "hsl": {
    "h": 76.571,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.55762,
    "c": 0.13025,
    "h": 124.6
  },
  "luminance": 0.18153
}

Semantic roles & 50–950 ramp

primary

#638017

secondary

#5F3EB4

accent

#3BEC6C

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #638017

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

Preview Lab → · Contrast checker → · Palette generator →