#637017#637017

#637017 is a mid, moderate yellow. Relative luminance 0.143; OKLCH L 51.7% C 0.110 H 117.9°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#637017
RGB	rgb(99, 112, 23)
HSL	hsl(69, 66%, 26%)
HSV	hsv(69, 79%, 44%)
CMYK	cmyk(11.6%, 0%, 79.5%, 56.1%)
CIE-LAB	lab(44.66, -17.13, 44.28)
CIE-LCH	lch(44.66, 47.47, 111.15°)
OKLab	oklab(51.71% -0.0515 0.0974)
OKLCH	oklch(51.71% 0.11 117.9)
XYZ	xyz(11.0947, 14.3030, 2.9867)
Luminance	0.1430 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637017 #241770

analogous

#705117 #637017 #377017

triadic

#637017 #176370 #701763

tetradic

#637017 #177051 #241770 #701737

square

#637017 #177051 #241770 #701737

split-complementary

#637017 #173770 #511770

monochromatic

#161905 #363D0D #637017 #90A321 #BCD42D

Accessibility & contrast

On white

5.44

#637017 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#637017 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #637017

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637017	#FFFFFF	#000000	##FFFFFF
##637017	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#786902

Deuteranopia (green-blind)

#776A1F

Tritanopia (blue-blind)

#69695F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #637017;
/* rgb */ color: rgb(99, 112, 23);
/* oklch */ color: oklch(51.7% 0.110 117.9);

Tailwind

colors: {
  custom: {
    50: '#92995c',
    500: '#637017',
    950: '#000000',
  },
}

SCSS

$custom: #637017;
$custom-light: #92995c;
$custom-dark: #000000;

JSON

{
  "hex": "#637017",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 23
  },
  "hsl": {
    "h": 68.764,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.51712,
    "c": 0.11018,
    "h": 117.9
  },
  "luminance": 0.14303
}

Semantic roles & 50–950 ramp

primary

#637017

secondary

#4C3DA6

accent

#3FE958

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #637017

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

Preview Lab → · Contrast checker → · Palette generator →