#637816#637816

#637816 is a mid, vivid yellow-green. Relative luminance 0.161; OKLCH L 53.7% C 0.121 H 121.6°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#637816
RGB	rgb(99, 120, 22)
HSL	hsl(73, 69%, 28%)
HSV	hsv(73, 82%, 47%)
CMYK	cmyk(17.5%, 0%, 81.7%, 52.9%)
CIE-LAB	lab(47.16, -21.37, 46.91)
CIE-LCH	lch(47.16, 51.55, 114.49°)
OKLab	oklab(53.72% -0.0632 0.1028)
OKLCH	oklch(53.72% 0.121 121.6)
XYZ	xyz(12.0071, 16.1435, 3.2424)
Luminance	0.1614 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637816 #2B1678

analogous

#785C16 #637816 #327816

triadic

#637816 #166378 #781663

tetradic

#637816 #16785C #2B1678 #781632

square

#637816 #16785C #2B1678 #781632

split-complementary

#637816 #163278 #5C1678

monochromatic

#151A05 #38440D #637816 #8EAC1F #B5D92F

Accessibility & contrast

On white

4.97

#637816 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#637816 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #637816

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637816	#FFFFFF	#000000	##FFFFFF
##637816	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#807000

Deuteranopia (green-blind)

#7D7020

Tritanopia (blue-blind)

#697166

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #637816;
/* rgb */ color: rgb(99, 120, 22);
/* oklch */ color: oklch(53.7% 0.121 121.6);

Tailwind

colors: {
  custom: {
    50: '#939f5d',
    500: '#637816',
    950: '#000000',
  },
}

SCSS

$custom: #637816;
$custom-light: #939f5d;
$custom-dark: #000000;

JSON

{
  "hex": "#637816",
  "rgb": {
    "r": 99,
    "g": 120,
    "b": 22
  },
  "hsl": {
    "h": 72.857,
    "s": 69.014,
    "l": 27.843
  },
  "oklch": {
    "l": 0.53723,
    "c": 0.12068,
    "h": 121.6
  },
  "luminance": 0.16144
}

Semantic roles & 50–950 ramp

primary

#637816

secondary

#553CAD

accent

#3CEC62

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0E05

muted

#7E7E79

Preview Lab

Preview with #637816

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

Preview Lab → · Contrast checker → · Palette generator →