#646D52#646D52

#646D52 is a mid, muted yellow-green. Relative luminance 0.143; OKLCH L 51.9% C 0.042 H 122.8°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#646D52
RGB	rgb(100, 109, 82)
HSL	hsl(80, 14%, 37%)
HSV	hsv(80, 25%, 43%)
CMYK	cmyk(8.3%, 0%, 24.8%, 57.3%)
CIE-LAB	lab(44.60, -8.65, 13.98)
CIE-LCH	lch(44.60, 16.44, 121.76°)
OKLab	oklab(51.93% -0.0229 0.0355)
OKLCH	oklch(51.93% 0.042 122.8)
XYZ	xyz(12.2470, 14.2558, 10.0875)
Luminance	0.1426 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D52 #5B526D

analogous

#6D6852 #646D52 #576D52

triadic

#646D52 #52646D #6D5264

tetradic

#646D52 #526D68 #5B526D #6D5257

square

#646D52 #526D68 #5B526D #6D5257

split-complementary

#646D52 #52576D #68526D

monochromatic

#24271D #444A38 #646D52 #84906C #A1AB8F

Accessibility & contrast

On white

5.45

#646D52 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#646D52 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D52

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D52	#FFFFFF	#000000	##FFFFFF
##646D52	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706A50

Deuteranopia (green-blind)

#6F6953

Tritanopia (blue-blind)

#666A66

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646d52;
/* rgb */ color: rgb(100, 109, 82);
/* oklch */ color: oklch(51.9% 0.042 122.8);

Tailwind

colors: {
  custom: {
    50: '#909682',
    500: '#646d52',
    950: '#000000',
  },
}

SCSS

$custom: #646d52;
$custom-light: #909682;
$custom-dark: #000000;

JSON

{
  "hex": "#646d52",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 82
  },
  "hsl": {
    "h": 80,
    "s": 14.136,
    "l": 37.451
  },
  "oklch": {
    "l": 0.5193,
    "c": 0.04229,
    "h": 122.8
  },
  "luminance": 0.14256
}

Semantic roles & 50–950 ramp

primary

#646D52

secondary

#8A8299

accent

#71B788

background

#F8F9F8

surface

#F0F2EF

border

#CBCCCA

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646D52

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

Preview Lab → · Contrast checker → · Palette generator →