#646C11#646C11

#646C11 is a mid, moderate yellow. Relative luminance 0.135; OKLCH L 50.8% C 0.108 H 114.9°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#646C11
RGB	rgb(100, 108, 17)
HSL	hsl(65, 73%, 25%)
HSV	hsv(65, 84%, 42%)
CMYK	cmyk(7.4%, 0%, 84.3%, 57.6%)
CIE-LAB	lab(43.47, -14.76, 45.19)
CIE-LCH	lch(43.47, 47.54, 108.09°)
OKLab	oklab(50.76% -0.0455 0.0982)
OKLCH	oklch(50.76% 0.108 114.9)
XYZ	xyz(10.7196, 13.4751, 2.5665)
Luminance	0.1348 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646C11 #19116C

analogous

#6C4711 #646C11 #376C11

triadic

#646C11 #11646C #6C1164

tetradic

#646C11 #116C47 #19116C #6C1137

square

#646C11 #116C47 #19116C #6C1137

split-complementary

#646C11 #11376C #47116C

monochromatic

#181A04 #333709 #646C11 #95A119 #C6D622

Accessibility & contrast

On white

5.68

#646C11 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#646C11 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646C11

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646C11	#FFFFFF	#000000	##FFFFFF
##646C11	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)

#74671A

Tritanopia (blue-blind)

#6B655C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646c11;
/* rgb */ color: rgb(100, 108, 17);
/* oklch */ color: oklch(50.8% 0.108 114.9);

Tailwind

colors: {
  custom: {
    50: '#939659',
    500: '#646c11',
    950: '#000000',
  },
}

SCSS

$custom: #646c11;
$custom-light: #939659;
$custom-dark: #000000;

JSON

{
  "hex": "#646c11",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 17
  },
  "hsl": {
    "h": 65.275,
    "s": 72.8,
    "l": 24.51
  },
  "oklch": {
    "l": 0.50763,
    "c": 0.10822,
    "h": 114.9
  },
  "luminance": 0.13475
}

Semantic roles & 50–950 ramp

primary

#646C11

secondary

#3F35A4

accent

#38EF48

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646C11

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

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