#636AEA#636AEA

#636AEA is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.7% C 0.190 H 276.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#636AEA
RGB	rgb(99, 106, 234)
HSL	hsl(237, 76%, 65%)
HSV	hsv(237, 58%, 92%)
CMYK	cmyk(57.7%, 54.7%, 0%, 8.2%)
CIE-LAB	lab(50.57, 34.05, -65.81)
CIE-LCH	lch(50.57, 74.09, 297.35°)
OKLab	oklab(58.73% 0.0214 -0.1887)
OKLCH	oklch(58.73% 0.19 276.5)
XYZ	xyz(25.1461, 18.8994, 80.1488)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636AEA #EAE363

analogous

#63ADEA #636AEA #9F63EA

triadic

#636AEA #EA636A #6AEA63

tetradic

#636AEA #EA63AD #EAE363 #63EA9F

square

#636AEA #EA63AD #EAE363 #63EA9F

split-complementary

#636AEA #EA9F63 #ADEA63

monochromatic

#1921BA #2D36E3 #636AEA #999EF1 #CFD1F9

Accessibility & contrast

On white

4.39

#636AEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#636AEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636AEA

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636AEA	#FFFFFF	#000000	##000000
##636AEA	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#077EEE

Deuteranopia (green-blind)

#0073E7

Tritanopia (blue-blind)

#0088A0

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #636aea;
/* rgb */ color: rgb(99, 106, 234);
/* oklch */ color: oklch(58.7% 0.190 276.5);

Tailwind

colors: {
  custom: {
    50: '#9b94f2',
    500: '#636aea',
    950: '#000000',
  },
}

SCSS

$custom: #636aea;
$custom-light: #9b94f2;
$custom-dark: #000000;

JSON

{
  "hex": "#636aea",
  "rgb": {
    "r": 99,
    "g": 106,
    "b": 234
  },
  "hsl": {
    "h": 236.889,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.58734,
    "c": 0.1899,
    "h": 276.5
  },
  "luminance": 0.18901
}

Semantic roles & 50–950 ramp

primary

#636AEA

secondary

#EBE9BE

accent

#CE0DD8

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636AEA

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

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