#636FC2#636FC2

#636FC2 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.1% C 0.128 H 275.4°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#636FC2
RGB	rgb(99, 111, 194)
HSL	hsl(232, 44%, 57%)
HSV	hsv(232, 49%, 76%)
CMYK	cmyk(49%, 42.8%, 0%, 23.9%)
CIE-LAB	lab(49.39, 18.30, -44.98)
CIE-LCH	lch(49.39, 48.56, 292.14°)
OKLab	oklab(57.06% 0.012 -0.1274)
OKLCH	oklch(57.06% 0.128 275.4)
XYZ	xyz(20.5646, 17.9154, 53.4029)
Luminance	0.1792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636FC2 #C2B663

analogous

#639FC2 #636FC2 #8663C2

triadic

#636FC2 #C2636F #6FC263

tetradic

#636FC2 #C2639F #C2B663 #63C286

square

#636FC2 #C2639F #C2B663 #63C286

split-complementary

#636FC2 #C28663 #9FC263

monochromatic

#30397B #414EA7 #636FC2 #8F98D3 #BBC0E4

Accessibility & contrast

On white

4.58

#636FC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#636FC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636FC2

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636FC2	#FFFFFF	#000000	##000000
##636FC2	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E79C5

Deuteranopia (green-blind)

#4572C0

Tritanopia (blue-blind)

#3E818F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #636fc2;
/* rgb */ color: rgb(99, 111, 194);
/* oklch */ color: oklch(57.1% 0.128 275.4);

Tailwind

colors: {
  custom: {
    50: '#9598d5',
    500: '#636fc2',
    950: '#000000',
  },
}

SCSS

$custom: #636fc2;
$custom-light: #9598d5;
$custom-dark: #000000;

JSON

{
  "hex": "#636fc2",
  "rgb": {
    "r": 99,
    "g": 111,
    "b": 194
  },
  "hsl": {
    "h": 232.421,
    "s": 43.779,
    "l": 57.451
  },
  "oklch": {
    "l": 0.57061,
    "c": 0.12801,
    "h": 275.4
  },
  "luminance": 0.17917
}

Semantic roles & 50–950 ramp

primary

#636FC2

secondary

#D4CFAD

accent

#C354D4

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #636FC2

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

Preview Lab → · Contrast checker → · Palette generator →