#636B60#636B60

#636B60 is a mid, near-neutral grey. Relative luminance 0.140; OKLCH L 51.7% C 0.020 H 137.1°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#636B60
RGB	rgb(99, 107, 96)
HSL	hsl(104, 5%, 40%)
HSV	hsv(104, 10%, 42%)
CMYK	cmyk(7.5%, 0%, 10.3%, 58%)
CIE-LAB	lab(44.25, -5.34, 5.12)
CIE-LCH	lch(44.25, 7.40, 136.17°)
OKLab	oklab(51.75% -0.0143 0.0134)
OKLCH	oklch(51.75% 0.02 137.1)
XYZ	xyz(12.5142, 14.0125, 13.1095)
Luminance	0.1401 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636B60 #68606B

analogous

#696B60 #636B60 #606B62

triadic

#636B60 #60636B #6B6063

tetradic

#636B60 #60696B #68606B #6B6260

square

#636B60 #60696B #68606B #6B6260

split-complementary

#636B60 #62606B #6B6069

monochromatic

#272A26 #454B43 #636B60 #818B7D #A0A89E

Accessibility & contrast

On white

5.52

#636B60 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#636B60 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636B60

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636B60	#FFFFFF	#000000	##FFFFFF
##636B60	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C695F

Deuteranopia (green-blind)

#6B6860

Tritanopia (blue-blind)

#636A68

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #636b60;
/* rgb */ color: rgb(99, 107, 96);
/* oklch */ color: oklch(51.7% 0.020 137.1);

Tailwind

colors: {
  custom: {
    50: '#8f958d',
    500: '#636b60',
    950: '#000000',
  },
}

SCSS

$custom: #636b60;
$custom-light: #8f958d;
$custom-dark: #000000;

JSON

{
  "hex": "#636b60",
  "rgb": {
    "r": 99,
    "g": 107,
    "b": 96
  },
  "hsl": {
    "h": 103.636,
    "s": 5.419,
    "l": 39.804
  },
  "oklch": {
    "l": 0.51745,
    "c": 0.0196,
    "h": 137.1
  },
  "luminance": 0.14013
}

Semantic roles & 50–950 ramp

primary

#636B60

secondary

#958F97

accent

#79AFA0

background

#F8F9F8

surface

#F0F1F0

border

#CBCBCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #636B60

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

Preview Lab → · Contrast checker → · Palette generator →