#646D20#646D20

#646D20 is a mid, moderate yellow. Relative luminance 0.138; OKLCH L 51.1% C 0.100 H 115.8°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#646D20
RGB	rgb(100, 109, 32)
HSL	hsl(67, 55%, 28%)
HSV	hsv(67, 71%, 43%)
CMYK	cmyk(8.3%, 0%, 70.6%, 57.3%)
CIE-LAB	lab(43.87, -14.52, 39.99)
CIE-LCH	lch(43.87, 42.55, 109.96°)
OKLab	oklab(51.12% -0.0434 0.09)
OKLCH	oklch(51.12% 0.1 115.8)
XYZ	xyz(10.9851, 13.7510, 3.4417)
Luminance	0.1375 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D20 #29206D

analogous

#6D4F20 #646D20 #3D6D20

triadic

#646D20 #20646D #6D2064

tetradic

#646D20 #206D4F #29206D #6D203D

square

#646D20 #206D4F #29206D #6D203D

split-complementary

#646D20 #203D6D #4F206D

monochromatic

#161807 #393E12 #646D20 #8F9C2E #B7C740

Accessibility & contrast

On white

5.60

#646D20 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#646D20 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D20

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D20	#FFFFFF	#000000	##FFFFFF
##646D20	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#756715

Deuteranopia (green-blind)

#746826

Tritanopia (blue-blind)

#6B675E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646d20;
/* rgb */ color: rgb(100, 109, 32);
/* oklch */ color: oklch(51.1% 0.100 115.8);

Tailwind

colors: {
  custom: {
    50: '#939660',
    500: '#646d20',
    950: '#000000',
  },
}

SCSS

$custom: #646d20;
$custom-light: #939660;
$custom-dark: #000000;

JSON

{
  "hex": "#646d20",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 32
  },
  "hsl": {
    "h": 67.013,
    "s": 54.61,
    "l": 27.647
  },
  "oklch": {
    "l": 0.51116,
    "c": 0.09994,
    "h": 115.8
  },
  "luminance": 0.13751
}

Semantic roles & 50–950 ramp

primary

#646D20

secondary

#5248A1

accent

#4ADE5B

background

#F9F9F5

surface

#F1F2EA

border

#CBCCC6

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #646D20

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

Preview Lab → · Contrast checker → · Palette generator →