#636889#636889

#636889 is a mid, muted blue. Relative luminance 0.144; OKLCH L 52.6% C 0.052 H 277.7°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#636889
RGB	rgb(99, 104, 137)
HSL	hsl(232, 16%, 46%)
HSV	hsv(232, 28%, 54%)
CMYK	cmyk(27.7%, 24.1%, 0%, 46.3%)
CIE-LAB	lab(44.74, 6.01, -18.81)
CIE-LCH	lch(44.74, 19.75, 287.73°)
OKLab	oklab(52.58% 0.007 -0.0518)
OKLCH	oklch(52.58% 0.052 277.7)
XYZ	xyz(14.6101, 14.3590, 25.6639)
Luminance	0.1436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636889 #898463

analogous

#637B89 #636889 #716389

triadic

#636889 #896368 #688963

tetradic

#636889 #89637B #898463 #638971

square

#636889 #89637B #898463 #638971

split-complementary

#636889 #897163 #7B8963

monochromatic

#303242 #494D65 #636889 #8388A6 #A7AABF

Accessibility & contrast

On white

5.42

#636889 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#636889 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636889

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636889	#FFFFFF	#000000	##FFFFFF
##636889	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F6B8A

Deuteranopia (green-blind)

#5C6988

Tritanopia (blue-blind)

#5A6E73

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #636889;
/* rgb */ color: rgb(99, 104, 137);
/* oklch */ color: oklch(52.6% 0.052 277.7);

Tailwind

colors: {
  custom: {
    50: '#9093ab',
    500: '#636889',
    950: '#000000',
  },
}

SCSS

$custom: #636889;
$custom-light: #9093ab;
$custom-dark: #000000;

JSON

{
  "hex": "#636889",
  "rgb": {
    "r": 99,
    "g": 104,
    "b": 137
  },
  "hsl": {
    "h": 232.105,
    "s": 16.102,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52584,
    "c": 0.0523,
    "h": 277.7
  },
  "luminance": 0.14359
}

Semantic roles & 50–950 ramp

primary

#636889

secondary

#AEAB9A

accent

#AF6FB9

background

#F8F9FA

surface

#F0F1F4

border

#CBCBCE

text

#0C0D10

muted

#7D7E7F

Preview Lab

Preview with #636889

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

Preview Lab → · Contrast checker → · Palette generator →