#637011#637011

#637011 is a mid, moderate yellow. Relative luminance 0.143; OKLCH L 51.7% C 0.113 H 117.7°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#637011
RGB	rgb(99, 112, 17)
HSL	hsl(68, 74%, 25%)
HSV	hsv(68, 85%, 44%)
CMYK	cmyk(11.6%, 0%, 84.8%, 56.1%)
CIE-LAB	lab(44.63, -17.39, 46.18)
CIE-LCH	lch(44.63, 49.35, 110.63°)
OKLab	oklab(51.68% -0.0527 0.1003)
OKLCH	oklch(51.68% 0.113 117.7)
XYZ	xyz(11.0412, 14.2816, 2.7052)
Luminance	0.1428 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637011 #1E1170

analogous

#704E11 #637011 #337011

triadic

#637011 #116370 #701163

tetradic

#637011 #11704E #1E1170 #701133

square

#637011 #11704E #1E1170 #701133

split-complementary

#637011 #113370 #4E1170

monochromatic

#171B04 #343B09 #637011 #92A519 #C1DA21

Accessibility & contrast

On white

5.45

#637011 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#637011 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #637011

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637011	#FFFFFF	#000000	##FFFFFF
##637011	1.00	5.45	3.86	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#786900

Deuteranopia (green-blind)

#776A1B

Tritanopia (blue-blind)

#6A695F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #637011;
/* rgb */ color: rgb(99, 112, 17);
/* oklch */ color: oklch(51.7% 0.113 117.7);

Tailwind

colors: {
  custom: {
    50: '#93995a',
    500: '#637011',
    950: '#000000',
  },
}

SCSS

$custom: #637011;
$custom-light: #93995a;
$custom-dark: #000000;

JSON

{
  "hex": "#637011",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 17
  },
  "hsl": {
    "h": 68.211,
    "s": 73.643,
    "l": 25.294
  },
  "oklch": {
    "l": 0.51678,
    "c": 0.11333,
    "h": 117.7
  },
  "luminance": 0.14281
}

Semantic roles & 50–950 ramp

primary

#637011

secondary

#4535A7

accent

#37F051

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #637011

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

Preview Lab → · Contrast checker → · Palette generator →