#646B20#646B20

#646B20 is a mid, moderate yellow. Relative luminance 0.133; OKLCH L 50.6% C 0.097 H 114.5°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#646B20
RGB	rgb(100, 107, 32)
HSL	hsl(66, 54%, 27%)
HSV	hsv(66, 70%, 42%)
CMYK	cmyk(6.5%, 0%, 70.1%, 58%)
CIE-LAB	lab(43.26, -13.43, 39.36)
CIE-LCH	lch(43.26, 41.59, 108.84°)
OKLab	oklab(50.62% -0.0404 0.0887)
OKLCH	oklch(50.62% 0.097 114.5)
XYZ	xyz(10.7742, 13.3292, 3.3714)
Luminance	0.1333 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646B20 #27206B

analogous

#6B4D20 #646B20 #3F6B20

triadic

#646B20 #20646B #6B2064

tetradic

#646B20 #206B4D #27206B #6B203F

square

#646B20 #206B4D #27206B #6B203F

split-complementary

#646B20 #203F6B #4D206B

monochromatic

#161807 #383C12 #646B20 #909A2E #B9C640

Accessibility & contrast

On white

5.73

#646B20 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#646B20 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646B20

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646B20	#FFFFFF	#000000	##FFFFFF
##646B20	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736615

Deuteranopia (green-blind)

#736725

Tritanopia (blue-blind)

#6B655C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #646b20;
/* rgb */ color: rgb(100, 107, 32);
/* oklch */ color: oklch(50.6% 0.097 114.5);

Tailwind

colors: {
  custom: {
    50: '#929560',
    500: '#646b20',
    950: '#000000',
  },
}

SCSS

$custom: #646b20;
$custom-light: #929560;
$custom-dark: #000000;

JSON

{
  "hex": "#646b20",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 32
  },
  "hsl": {
    "h": 65.6,
    "s": 53.957,
    "l": 27.255
  },
  "oklch": {
    "l": 0.5062,
    "c": 0.09743,
    "h": 114.5
  },
  "luminance": 0.13329
}

Semantic roles & 50–950 ramp

primary

#646B20

secondary

#50489F

accent

#4ADD58

background

#F9F9F5

surface

#F1F1EA

border

#CBCBC6

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646B20

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

Preview Lab → · Contrast checker → · Palette generator →