#638518#638518

#638518 is a mid, vivid yellow-green. Relative luminance 0.195; OKLCH L 57.0% C 0.136 H 126.3°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#638518
RGB	rgb(99, 133, 24)
HSL	hsl(79, 69%, 31%)
HSV	hsv(79, 82%, 52%)
CMYK	cmyk(25.6%, 0%, 82%, 47.8%)
CIE-LAB	lab(51.26, -27.77, 50.01)
CIE-LCH	lch(51.26, 57.20, 119.04°)
OKLab	oklab(57.04% -0.0805 0.1097)
OKLCH	oklch(57.04% 0.136 126.3)
XYZ	xyz(13.6981, 19.4934, 3.9049)
Luminance	0.1949 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638518 #3A1885

analogous

#857018 #638518 #2C8518

triadic

#638518 #186385 #851863

tetradic

#638518 #188570 #3A1885 #85182C

square

#638518 #188570 #3A1885 #85182C

split-complementary

#638518 #182C85 #701885

monochromatic

#161D05 #3C510F #638518 #8AB921 #AADC3C

Accessibility & contrast

On white

4.29

#638518 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#638518 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638518

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638518	#FFFFFF	#000000	##000000
##638518	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C7B00

Deuteranopia (green-blind)

#887A24

Tritanopia (blue-blind)

#677E71

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #638518;
/* rgb */ color: rgb(99, 133, 24);
/* oklch */ color: oklch(57.0% 0.136 126.3);

Tailwind

colors: {
  custom: {
    50: '#93a860',
    500: '#638518',
    950: '#000000',
  },
}

SCSS

$custom: #638518;
$custom-light: #93a860;
$custom-dark: #000000;

JSON

{
  "hex": "#638518",
  "rgb": {
    "r": 99,
    "g": 133,
    "b": 24
  },
  "hsl": {
    "h": 78.716,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.57044,
    "c": 0.13608,
    "h": 126.3
  },
  "luminance": 0.19494
}

Semantic roles & 50–950 ramp

primary

#638518

secondary

#6640B9

accent

#3CEC73

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #638518

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

Preview Lab → · Contrast checker → · Palette generator →