#636AF2#636AF2

#636AF2 is a mid, highly saturated blue. Relative luminance 0.194; OKLCH L 59.3% C 0.200 H 276.2°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX#636AF2
RGBrgb(99, 106, 242)
HSLhsl(237, 85%, 67%)
HSVhsv(237, 59%, 95%)
CMYKcmyk(59.1%, 56.2%, 0%, 5.1%)
CIE-LABlab(51.12, 36.61, -69.40)
CIE-LCHlch(51.12, 78.46, 297.81°)
OKLaboklab(59.32% 0.0216 -0.1992)
OKLCHoklch(59.32% 0.2 276.2)
XYZxyz(26.3214, 19.3695, 86.3388)
Luminance0.1937 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#636AF2 #F2EB63
analogous
#63B2F2 #636AF2 #A463F2
triadic
#636AF2 #F2636A #6AF263
tetradic
#636AF2 #F263B2 #F2EB63 #63F2A4
square
#636AF2 #F263B2 #F2EB63 #63F2A4
split-complementary
#636AF2 #F2A463 #B2F263
monochromatic
#111ACA #2B34ED #636AF2 #9BA0F7 #D4D6FB

Accessibility & contrast

On white

4.31
#636AF2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.87
#636AF2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636AF2
4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##636AF2#FFFFFF#000000##000000
##636AF21.004.314.874.87
#FFFFFF4.311.0021.0021.00
#0000004.8721.001.001.00
##0000004.8721.001.001.00

Color blindness preview

Protanopia (red-blind)
#0080F7
Deuteranopia (green-blind)
#0074EF
Tritanopia (blue-blind)
#008AA4
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #636af2;
/* rgb */ color: rgb(99, 106, 242);
/* oklch */ color: oklch(59.3% 0.200 276.2);
Tailwind
colors: {
  custom: {
    50: '#9c94f7',
    500: '#636af2',
    950: '#000000',
  },
}
SCSS
$custom: #636af2;
$custom-light: #9c94f7;
$custom-dark: #000000;
JSON
{
  "hex": "#636af2",
  "rgb": {
    "r": 99,
    "g": 106,
    "b": 242
  },
  "hsl": {
    "h": 237.063,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.59315,
    "c": 0.20042,
    "h": 276.2
  },
  "luminance": 0.19372
}

Semantic roles & 50–950 ramp

primary
#636AF2
secondary
#EFEDC2
accent
#D604E1
background
#FAF9FF
surface
#F4F1FF
border
#CECBD7
text
#0F0D17
muted
#7F7E85

Preview Lab

Preview with #636AF2

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

Preview Lab → · Contrast checker → · Palette generator →

#636AF2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva