#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
RGBrgb(99, 107, 232)
HSLhsl(236, 74%, 65%)
HSVhsv(236, 57%, 91%)
CMYKcmyk(57.3%, 53.9%, 0%, 9%)
CIE-LABlab(50.68, 32.80, -64.51)
CIE-LCHlch(50.68, 72.37, 296.95°)
OKLaboklab(58.77% 0.0204 -0.1849)
OKLCHoklch(58.77% 0.186 276.3)
XYZxyz(24.9641, 18.9924, 78.6787)
Luminance0.1899 (WCAG relative)
Temperaturecool
Familyblue

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
##636BE81.004.384.804.80
#FFFFFF4.381.0021.0021.00
#0000004.8021.001.001.00
##0000004.8021.001.001.00

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 →

#636BE8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva