#636D64#636D64

#636D64 is a mid, near-neutral grey. Relative luminance 0.145; OKLCH L 52.3% C 0.018 H 148.2°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#636D64
RGB	rgb(99, 109, 100)
HSL	hsl(126, 5%, 41%)
HSV	hsv(126, 9%, 43%)
CMYK	cmyk(9.2%, 0%, 8.3%, 57.3%)
CIE-LAB	lab(44.96, -5.69, 3.73)
CIE-LCH	lch(44.96, 6.81, 146.75°)
OKLab	oklab(52.34% -0.0157 0.0097)
OKLCH	oklch(52.34% 0.018 148.2)
XYZ	xyz(12.9140, 14.5099, 14.1744)
Luminance	0.1451 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636D64 #6D636C

analogous

#676D63 #636D64 #636D69

triadic

#636D64 #64636D #6D6463

tetradic

#636D64 #63676D #6D636C #6D6963

square

#636D64 #63676D #6D636C #6D6963

split-complementary

#636D64 #69636D #6D6367

monochromatic

#292D29 #464D47 #636D64 #818C82 #A1AAA2

Accessibility & contrast

On white

5.38

#636D64 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#636D64 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636D64

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636D64	#FFFFFF	#000000	##FFFFFF
##636D64	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6B64

Deuteranopia (green-blind)

#6B6A64

Tritanopia (blue-blind)

#626C6A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #636d64;
/* rgb */ color: rgb(99, 109, 100);
/* oklch */ color: oklch(52.3% 0.018 148.2);

Tailwind

colors: {
  custom: {
    50: '#8f9690',
    500: '#636d64',
    950: '#000000',
  },
}

SCSS

$custom: #636d64;
$custom-light: #8f9690;
$custom-dark: #000000;

JSON

{
  "hex": "#636d64",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 100
  },
  "hsl": {
    "h": 126,
    "s": 4.808,
    "l": 40.784
  },
  "oklch": {
    "l": 0.52338,
    "c": 0.01848,
    "h": 148.2
  },
  "luminance": 0.1451
}

Semantic roles & 50–950 ramp

primary

#636D64

secondary

#999299

accent

#7AA9AE

background

#F8F9F8

surface

#F0F2F0

border

#CBCCCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #636D64

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

Preview Lab → · Contrast checker → · Palette generator →