#646B13#646B13

#646B13 is a mid, moderate yellow. Relative luminance 0.133; OKLCH L 50.5% C 0.106 H 114.3°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#646B13
RGB	rgb(100, 107, 19)
HSL	hsl(65, 70%, 25%)
HSV	hsv(65, 82%, 42%)
CMYK	cmyk(6.5%, 0%, 82.2%, 58%)
CIE-LAB	lab(43.17, -14.14, 44.29)
CIE-LCH	lch(43.17, 46.50, 107.70°)
OKLab	oklab(50.53% -0.0436 0.0966)
OKLCH	oklch(50.53% 0.106 114.3)
XYZ	xyz(10.6311, 13.2719, 2.6177)
Luminance	0.1327 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646B13 #1A136B

analogous

#6B4613 #646B13 #386B13

triadic

#646B13 #13646B #6B1364

tetradic

#646B13 #136B46 #1A136B #6B1338

square

#646B13 #136B46 #1A136B #6B1338

split-complementary

#646B13 #13386B #46136B

monochromatic

#181A05 #33370A #646B13 #959F1C #C5D325

Accessibility & contrast

On white

5.75

#646B13 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#646B13 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646B13

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646B13	#FFFFFF	#000000	##FFFFFF
##646B13	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736500

Deuteranopia (green-blind)

#73671B

Tritanopia (blue-blind)

#6B645B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #646b13;
/* rgb */ color: rgb(100, 107, 19);
/* oklch */ color: oklch(50.5% 0.106 114.3);

Tailwind

colors: {
  custom: {
    50: '#93955a',
    500: '#646b13',
    950: '#000000',
  },
}

SCSS

$custom: #646b13;
$custom-light: #93955a;
$custom-dark: #000000;

JSON

{
  "hex": "#646b13",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 19
  },
  "hsl": {
    "h": 64.773,
    "s": 69.841,
    "l": 24.706
  },
  "oklch": {
    "l": 0.50525,
    "c": 0.10604,
    "h": 114.3
  },
  "luminance": 0.13272
}

Semantic roles & 50–950 ramp

primary

#646B13

secondary

#4038A2

accent

#3BED49

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646B13

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

Preview Lab → · Contrast checker → · Palette generator →