#646C1E#646C1E

#646C1E is a mid, moderate yellow. Relative luminance 0.135; OKLCH L 50.9% C 0.100 H 115.1°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#646C1E
RGB	rgb(100, 108, 30)
HSL	hsl(66, 57%, 27%)
HSV	hsv(66, 72%, 42%)
CMYK	cmyk(7.4%, 0%, 72.2%, 57.6%)
CIE-LAB	lab(43.55, -14.11, 40.52)
CIE-LCH	lch(43.55, 42.90, 109.20°)
OKLab	oklab(50.85% -0.0425 0.0908)
OKLCH	oklch(50.85% 0.1 115.1)
XYZ	xyz(10.8527, 13.5284, 3.2676)
Luminance	0.1353 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646C1E #261E6C

analogous

#6C4D1E #646C1E #3D6C1E

triadic

#646C1E #1E646C #6C1E64

tetradic

#646C1E #1E6C4D #261E6C #6C1E3D

square

#646C1E #1E6C4D #261E6C #6C1E3D

split-complementary

#646C1E #1E3D6C #4D1E6C

monochromatic

#161807 #383C11 #646C1E #909C2B #BAC93C

Accessibility & contrast

On white

5.67

#646C1E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#646C1E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646C1E

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646C1E	#FFFFFF	#000000	##FFFFFF
##646C1E	1.00	5.67	3.71	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#746612

Deuteranopia (green-blind)

#736824

Tritanopia (blue-blind)

#6B665C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646c1e;
/* rgb */ color: rgb(100, 108, 30);
/* oklch */ color: oklch(50.9% 0.100 115.1);

Tailwind

colors: {
  custom: {
    50: '#93965f',
    500: '#646c1e',
    950: '#000000',
  },
}

SCSS

$custom: #646c1e;
$custom-light: #93965f;
$custom-dark: #000000;

JSON

{
  "hex": "#646c1e",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 30
  },
  "hsl": {
    "h": 66.154,
    "s": 56.522,
    "l": 27.059
  },
  "oklch": {
    "l": 0.50851,
    "c": 0.1002,
    "h": 115.1
  },
  "luminance": 0.13528
}

Semantic roles & 50–950 ramp

primary

#646C1E

secondary

#4F45A0

accent

#48E058

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646C1E

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

Preview Lab → · Contrast checker → · Palette generator →