#646D13#646D13

#646D13 is a mid, moderate yellow. Relative luminance 0.137; OKLCH L 51.0% C 0.108 H 115.5°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#646D13
RGB	rgb(100, 109, 19)
HSL	hsl(66, 70%, 25%)
HSV	hsv(66, 83%, 43%)
CMYK	cmyk(8.3%, 0%, 82.6%, 57.3%)
CIE-LAB	lab(43.79, -15.23, 44.85)
CIE-LCH	lch(43.79, 47.37, 108.75°)
OKLab	oklab(51.02% -0.0467 0.0978)
OKLCH	oklch(51.02% 0.108 115.5)
XYZ	xyz(10.8420, 13.6938, 2.6880)
Luminance	0.1369 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D13 #1C136D

analogous

#6D4913 #646D13 #376D13

triadic

#646D13 #13646D #6D1364

tetradic

#646D13 #136D49 #1C136D #6D1337

square

#646D13 #136D49 #1C136D #6D1337

split-complementary

#646D13 #13376D #49136D

monochromatic

#181A05 #34390A #646D13 #94A11C #C4D525

Accessibility & contrast

On white

5.62

#646D13 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#646D13 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D13

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D13	#FFFFFF	#000000	##FFFFFF
##646D13	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756700

Deuteranopia (green-blind)

#75681C

Tritanopia (blue-blind)

#6B665D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646d13;
/* rgb */ color: rgb(100, 109, 19);
/* oklch */ color: oklch(51.0% 0.108 115.5);

Tailwind

colors: {
  custom: {
    50: '#93965a',
    500: '#646d13',
    950: '#000000',
  },
}

SCSS

$custom: #646d13;
$custom-light: #93965a;
$custom-dark: #000000;

JSON

{
  "hex": "#646d13",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 19
  },
  "hsl": {
    "h": 66,
    "s": 70.313,
    "l": 25.098
  },
  "oklch": {
    "l": 0.51023,
    "c": 0.10839,
    "h": 115.5
  },
  "luminance": 0.13694
}

Semantic roles & 50–950 ramp

primary

#646D13

secondary

#4338A4

accent

#3BED4D

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646D13

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

Preview Lab → · Contrast checker → · Palette generator →