#646D4E#646D4E

#646D4E is a mid, muted yellow-green. Relative luminance 0.142; OKLCH L 51.8% C 0.048 H 121.2°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#646D4E
RGB	rgb(100, 109, 78)
HSL	hsl(77, 17%, 37%)
HSV	hsv(77, 28%, 43%)
CMYK	cmyk(8.3%, 0%, 28.4%, 57.3%)
CIE-LAB	lab(44.51, -9.31, 16.23)
CIE-LCH	lch(44.51, 18.71, 119.85°)
OKLab	oklab(51.84% -0.0248 0.0409)
OKLCH	oklch(51.84% 0.048 121.2)
XYZ	xyz(12.0992, 14.1967, 9.3091)
Luminance	0.1420 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D4E #574E6D

analogous

#6D674E #646D4E #556D4E

triadic

#646D4E #4E646D #6D4E64

tetradic

#646D4E #4E6D67 #574E6D #6D4E55

square

#646D4E #4E6D67 #574E6D #6D4E55

split-complementary

#646D4E #4E556D #674E6D

monochromatic

#23261B #434934 #646D4E #859168 #A2AB8A

Accessibility & contrast

On white

5.47

#646D4E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#646D4E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D4E

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D4E	#FFFFFF	#000000	##FFFFFF
##646D4E	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71694C

Deuteranopia (green-blind)

#70694F

Tritanopia (blue-blind)

#676A65

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646d4e;
/* rgb */ color: rgb(100, 109, 78);
/* oklch */ color: oklch(51.8% 0.048 121.2);

Tailwind

colors: {
  custom: {
    50: '#90967f',
    500: '#646d4e',
    950: '#000000',
  },
}

SCSS

$custom: #646d4e;
$custom-light: #90967f;
$custom-dark: #000000;

JSON

{
  "hex": "#646d4e",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 78
  },
  "hsl": {
    "h": 77.419,
    "s": 16.578,
    "l": 36.667
  },
  "oklch": {
    "l": 0.51836,
    "c": 0.04785,
    "h": 121.2
  },
  "luminance": 0.14197
}

Semantic roles & 50–950 ramp

primary

#646D4E

secondary

#867E99

accent

#6FB984

background

#F8F9F7

surface

#F0F2EE

border

#CBCCC9

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646D4E

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

Preview Lab → · Contrast checker → · Palette generator →