#636EC0#636EC0

#636EC0 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.7% C 0.126 H 275.8°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#636EC0
RGB	rgb(99, 110, 192)
HSL	hsl(233, 42%, 57%)
HSV	hsv(233, 48%, 75%)
CMYK	cmyk(48.4%, 42.7%, 0%, 24.7%)
CIE-LAB	lab(49.02, 18.29, -44.42)
CIE-LCH	lch(49.02, 48.04, 292.38°)
OKLab	oklab(56.74% 0.0129 -0.1258)
OKLCH	oklch(56.74% 0.126 275.8)
XYZ	xyz(20.2330, 17.6091, 52.1917)
Luminance	0.1761 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636EC0 #C0B563

analogous

#639DC0 #636EC0 #8763C0

triadic

#636EC0 #C0636E #6EC063

tetradic

#636EC0 #C0639D #C0B563 #63C087

square

#636EC0 #C0639D #C0B563 #63C087

split-complementary

#636EC0 #C08763 #9DC063

monochromatic

#313978 #424EA4 #636EC0 #8F97D2 #BABFE3

Accessibility & contrast

On white

4.64

#636EC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#636EC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #636EC0

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636EC0	#FFFFFF	#000000	##FFFFFF
##636EC0	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D78C3

Deuteranopia (green-blind)

#4571BE

Tritanopia (blue-blind)

#3F7F8E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #636ec0;
/* rgb */ color: rgb(99, 110, 192);
/* oklch */ color: oklch(56.7% 0.126 275.8);

Tailwind

colors: {
  custom: {
    50: '#9597d3',
    500: '#636ec0',
    950: '#000000',
  },
}

SCSS

$custom: #636ec0;
$custom-light: #9597d3;
$custom-dark: #000000;

JSON

{
  "hex": "#636ec0",
  "rgb": {
    "r": 99,
    "g": 110,
    "b": 192
  },
  "hsl": {
    "h": 232.903,
    "s": 42.466,
    "l": 57.059
  },
  "oklch": {
    "l": 0.56739,
    "c": 0.12649,
    "h": 275.8
  },
  "luminance": 0.1761
}

Semantic roles & 50–950 ramp

primary

#636EC0

secondary

#D2CEAC

accent

#C456D2

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #636EC0

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

Preview Lab → · Contrast checker → · Palette generator →