#636BE8#636BE8

#636BE8 is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.8% C 0.186 H 276.3°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#636BE8
RGB	rgb(99, 107, 232)
HSL	hsl(236, 74%, 65%)
HSV	hsv(236, 57%, 91%)
CMYK	cmyk(57.3%, 53.9%, 0%, 9%)
CIE-LAB	lab(50.68, 32.80, -64.51)
CIE-LCH	lch(50.68, 72.37, 296.95°)
OKLab	oklab(58.77% 0.0204 -0.1849)
OKLCH	oklch(58.77% 0.186 276.3)
XYZ	xyz(24.9641, 18.9924, 78.6787)
Luminance	0.1899 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636BE8 #E8E063

analogous

#63AEE8 #636BE8 #9E63E8

triadic

#636BE8 #E8636B #6BE863

tetradic

#636BE8 #E863AE #E8E063 #63E89E

square

#636BE8 #E863AE #E8E063 #63E89E

split-complementary

#636BE8 #E89E63 #AEE863

monochromatic

#1B24B6 #2E38E0 #636BE8 #989EF0 #CED0F8

Accessibility & contrast

On white

4.38

#636BE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#636BE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636BE8

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636BE8	#FFFFFF	#000000	##000000
##636BE8	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#177EEC

Deuteranopia (green-blind)

#0073E5

Tritanopia (blue-blind)

#04889F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #636be8;
/* rgb */ color: rgb(99, 107, 232);
/* oklch */ color: oklch(58.8% 0.186 276.3);

Tailwind

colors: {
  custom: {
    50: '#9a95f0',
    500: '#636be8',
    950: '#000000',
  },
}

SCSS

$custom: #636be8;
$custom-light: #9a95f0;
$custom-dark: #000000;

JSON

{
  "hex": "#636be8",
  "rgb": {
    "r": 99,
    "g": 107,
    "b": 232
  },
  "hsl": {
    "h": 236.391,
    "s": 74.302,
    "l": 64.902
  },
  "oklch": {
    "l": 0.58773,
    "c": 0.18598,
    "h": 276.3
  },
  "luminance": 0.18994
}

Semantic roles & 50–950 ramp

primary

#636BE8

secondary

#EAE7BD

accent

#CA0FD6

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636BE8

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

Preview Lab → · Contrast checker → · Palette generator →