#636166#636166

#636166 is a mid, near-neutral grey. Relative luminance 0.122; OKLCH L 49.6% C 0.008 H 304.1°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#636166
RGB	rgb(99, 97, 102)
HSL	hsl(264, 3%, 39%)
HSV	hsv(264, 5%, 40%)
CMYK	cmyk(2.9%, 4.9%, 0%, 60%)
CIE-LAB	lab(41.47, 1.84, -2.55)
CIE-LCH	lch(41.47, 3.15, 305.72°)
OKLab	oklab(49.61% 0.0046 -0.0068)
OKLCH	oklch(49.61% 0.008 304.1)
XYZ	xyz(11.8181, 12.1614, 14.2926)
Luminance	0.1216 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636166 #646661

analogous

#616266 #636166 #666166

triadic

#636166 #666361 #616663

tetradic

#636166 #666162 #646661 #616666

square

#636166 #666162 #646661 #616666

split-complementary

#636166 #666661 #626661

monochromatic

#262527 #454347 #636166 #817F85 #A09EA3

Accessibility & contrast

On white

6.12

#636166 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#636166 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636166

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636166	#FFFFFF	#000000	##FFFFFF
##636166	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#606266

Deuteranopia (green-blind)

#616266

Tritanopia (blue-blind)

#636263

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #636166;
/* rgb */ color: rgb(99, 97, 102);
/* oklch */ color: oklch(49.6% 0.008 304.1);

Tailwind

colors: {
  custom: {
    50: '#8f8d91',
    500: '#636166',
    950: '#000000',
  },
}

SCSS

$custom: #636166;
$custom-light: #8f8d91;
$custom-dark: #000000;

JSON

{
  "hex": "#636166",
  "rgb": {
    "r": 99,
    "g": 97,
    "b": 102
  },
  "hsl": {
    "h": 264,
    "s": 2.513,
    "l": 39.02
  },
  "oklch": {
    "l": 0.49613,
    "c": 0.00821,
    "h": 304.1
  },
  "luminance": 0.12161
}

Semantic roles & 50–950 ramp

primary

#636166

secondary

#92938F

accent

#AC7C99

background

#F8F8F8

surface

#F0F0F0

border

#CBCBCB

text

#0C0C0C

muted

#7D7D7D

Preview Lab

Preview with #636166

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

Preview Lab → · Contrast checker → · Palette generator →