#646C13#646C13

#646C13 is a mid, moderate yellow. Relative luminance 0.135; OKLCH L 50.8% C 0.107 H 114.9°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#646C13
RGB	rgb(100, 108, 19)
HSL	hsl(65, 70%, 25%)
HSV	hsv(65, 82%, 42%)
CMYK	cmyk(7.4%, 0%, 82.4%, 57.6%)
CIE-LAB	lab(43.48, -14.68, 44.57)
CIE-LCH	lch(43.48, 46.93, 108.23°)
OKLab	oklab(50.77% -0.0451 0.0972)
OKLCH	oklch(50.77% 0.107 114.9)
XYZ	xyz(10.7360, 13.4817, 2.6526)
Luminance	0.1348 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646C13 #1B136C

analogous

#6C4713 #646C13 #386C13

triadic

#646C13 #13646C #6C1364

tetradic

#646C13 #136C47 #1B136C #6C1338

square

#646C13 #136C47 #1B136C #6C1338

split-complementary

#646C13 #13386C #47136C

monochromatic

#181A05 #34380A #646C13 #94A01C #C4D425

Accessibility & contrast

On white

5.68

#646C13 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#646C13 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646C13

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646C13	#FFFFFF	#000000	##FFFFFF
##646C13	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#746600

Deuteranopia (green-blind)

#74671B

Tritanopia (blue-blind)

#6B655C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646c13;
/* rgb */ color: rgb(100, 108, 19);
/* oklch */ color: oklch(50.8% 0.107 114.9);

Tailwind

colors: {
  custom: {
    50: '#93965a',
    500: '#646c13',
    950: '#000000',
  },
}

SCSS

$custom: #646c13;
$custom-light: #93965a;
$custom-dark: #000000;

JSON

{
  "hex": "#646c13",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 19
  },
  "hsl": {
    "h": 65.393,
    "s": 70.079,
    "l": 24.902
  },
  "oklch": {
    "l": 0.50774,
    "c": 0.10721,
    "h": 114.9
  },
  "luminance": 0.13481
}

Semantic roles & 50–950 ramp

primary

#646C13

secondary

#4138A3

accent

#3BED4B

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646C13

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

Preview Lab → · Contrast checker → · Palette generator →