#646C4E#646C4E

#646C4E is a mid, muted yellow-green. Relative luminance 0.140; OKLCH L 51.6% C 0.046 H 120.2°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#646C4E
RGB	rgb(100, 108, 78)
HSL	hsl(76, 16%, 36%)
HSV	hsv(76, 28%, 42%)
CMYK	cmyk(7.4%, 0%, 27.8%, 57.6%)
CIE-LAB	lab(44.21, -8.74, 15.82)
CIE-LCH	lch(44.21, 18.07, 118.94°)
OKLab	oklab(51.59% -0.0232 0.0399)
OKLCH	oklch(51.59% 0.046 120.2)
XYZ	xyz(11.9931, 13.9845, 9.2737)
Luminance	0.1399 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646C4E #564E6C

analogous

#6C654E #646C4E #556C4E

triadic

#646C4E #4E646C #6C4E64

tetradic

#646C4E #4E6C65 #564E6C #6C4E55

square

#646C4E #4E6C65 #564E6C #6C4E55

split-complementary

#646C4E #4E556C #654E6C

monochromatic

#22251B #434834 #646C4E #859068 #A2AA8A

Accessibility & contrast

On white

5.53

#646C4E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#646C4E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646C4E

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646C4E	#FFFFFF	#000000	##FFFFFF
##646C4E	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70694C

Deuteranopia (green-blind)

#6F694F

Tritanopia (blue-blind)

#676964

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646c4e;
/* rgb */ color: rgb(100, 108, 78);
/* oklch */ color: oklch(51.6% 0.046 120.2);

Tailwind

colors: {
  custom: {
    50: '#90967f',
    500: '#646c4e',
    950: '#000000',
  },
}

SCSS

$custom: #646c4e;
$custom-light: #90967f;
$custom-dark: #000000;

JSON

{
  "hex": "#646c4e",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 78
  },
  "hsl": {
    "h": 76,
    "s": 16.129,
    "l": 36.471
  },
  "oklch": {
    "l": 0.51594,
    "c": 0.04617,
    "h": 120.2
  },
  "luminance": 0.13985
}

Semantic roles & 50–950 ramp

primary

#646C4E

secondary

#857E98

accent

#6FB983

background

#F8F9F7

surface

#F0F1EE

border

#CBCBC9

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646C4E

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

Preview Lab → · Contrast checker → · Palette generator →