#646C5E#646C5E

#646C5E is a mid, muted grey. Relative luminance 0.142; OKLCH L 52.0% C 0.024 H 131.7°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#646C5E
RGB	rgb(100, 108, 94)
HSL	hsl(94, 7%, 40%)
HSV	hsv(94, 13%, 42%)
CMYK	cmyk(7.4%, 0%, 13%, 57.6%)
CIE-LAB	lab(44.58, -5.91, 6.80)
CIE-LCH	lch(44.58, 9.01, 131.00°)
OKLab	oklab(52.01% -0.0157 0.0177)
OKLCH	oklch(52.01% 0.024 131.7)
XYZ	xyz(12.6381, 14.2425, 12.6708)
Luminance	0.1424 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646C5E #665E6C

analogous

#6B6C5E #646C5E #5E6C5F

triadic

#646C5E #5E646C #6C5E64

tetradic

#646C5E #5E6B6C #665E6C #6C5F5E

square

#646C5E #5E6B6C #665E6C #6C5F5E

split-complementary

#646C5E #5F5E6C #6C5E6B

monochromatic

#272B25 #464B42 #646C5E #828C7B #A1A99C

Accessibility & contrast

On white

5.46

#646C5E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#646C5E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646C5E

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646C5E	#FFFFFF	#000000	##FFFFFF
##646C5E	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6A5D

Deuteranopia (green-blind)

#6C695F

Tritanopia (blue-blind)

#646B68

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646c5e;
/* rgb */ color: rgb(100, 108, 94);
/* oklch */ color: oklch(52.0% 0.024 131.7);

Tailwind

colors: {
  custom: {
    50: '#90968b',
    500: '#646c5e',
    950: '#000000',
  },
}

SCSS

$custom: #646c5e;
$custom-light: #90968b;
$custom-dark: #000000;

JSON

{
  "hex": "#646c5e",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 94
  },
  "hsl": {
    "h": 94.286,
    "s": 6.931,
    "l": 39.608
  },
  "oklch": {
    "l": 0.52008,
    "c": 0.02364,
    "h": 131.7
  },
  "luminance": 0.14243
}

Semantic roles & 50–950 ramp

primary

#646C5E

secondary

#948E98

accent

#78B098

background

#F8F9F8

surface

#F0F1F0

border

#CBCBCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #646C5E

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

Preview Lab → · Contrast checker → · Palette generator →