#636DCA#636DCA

#636DCA is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.1% C 0.142 H 276.3°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#636DCA
RGB	rgb(99, 109, 202)
HSL	hsl(234, 49%, 59%)
HSV	hsv(234, 51%, 79%)
CMYK	cmyk(51%, 46%, 0%, 20.8%)
CIE-LAB	lab(49.32, 22.03, -49.69)
CIE-LCH	lch(49.32, 54.35, 293.91°)
OKLab	oklab(57.15% 0.0156 -0.1413)
OKLCH	oklch(57.15% 0.142 276.3)
XYZ	xyz(21.2715, 17.8529, 58.1907)
Luminance	0.1785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636DCA #CAC063

analogous

#63A1CA #636DCA #8D63CA

triadic

#636DCA #CA636D #6DCA63

tetradic

#636DCA #CA63A1 #CAC063 #63CA8D

square

#636DCA #CA63A1 #CAC063 #63CA8D

split-complementary

#636DCA #CA8D63 #A1CA63

monochromatic

#2D3685 #3D48B3 #636DCA #9198DA #BEC3E9

Accessibility & contrast

On white

4.59

#636DCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#636DCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #636DCA

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636DCA	#FFFFFF	#000000	##FFFFFF
##636DCA	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457ACD

Deuteranopia (green-blind)

#3A71C8

Tritanopia (blue-blind)

#388192

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #636dca;
/* rgb */ color: rgb(99, 109, 202);
/* oklch */ color: oklch(57.1% 0.142 276.3);

Tailwind

colors: {
  custom: {
    50: '#9696db',
    500: '#636dca',
    950: '#000000',
  },
}

SCSS

$custom: #636dca;
$custom-light: #9696db;
$custom-dark: #000000;

JSON

{
  "hex": "#636dca",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 202
  },
  "hsl": {
    "h": 234.175,
    "s": 49.282,
    "l": 59.02
  },
  "oklch": {
    "l": 0.57149,
    "c": 0.14213,
    "h": 276.3
  },
  "luminance": 0.17854
}

Semantic roles & 50–950 ramp

primary

#636DCA

secondary

#D9D5B0

accent

#CB4FD9

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #636DCA

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

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