#636CF5#636CF5

#636CF5 is a mid, highly saturated blue. Relative luminance 0.200; OKLCH L 59.9% C 0.202 H 275.6°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#636CF5
RGB	rgb(99, 108, 245)
HSL	hsl(236, 88%, 67%)
HSV	hsv(236, 60%, 96%)
CMYK	cmyk(59.6%, 55.9%, 0%, 3.9%)
CIE-LAB	lab(51.80, 36.37, -69.96)
CIE-LCH	lch(51.80, 78.85, 297.47°)
OKLab	oklab(59.89% 0.0198 -0.2009)
OKLCH	oklch(59.89% 0.202 275.6)
XYZ	xyz(26.9842, 19.9683, 88.8008)
Luminance	0.1997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636CF5 #F5EC63

analogous

#63B5F5 #636CF5 #A363F5

triadic

#636CF5 #F5636C #6CF563

tetradic

#636CF5 #F563B5 #F5EC63 #63F5A3

square

#636CF5 #F563B5 #F5EC63 #63F5A3

split-complementary

#636CF5 #F5A363 #B5F563

monochromatic

#0D19D0 #2936F1 #636CF5 #9DA2F9 #D6D8FC

Accessibility & contrast

On white

4.21

#636CF5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#636CF5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636CF5

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636CF5	#FFFFFF	#000000	##000000
##636CF5	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0082FA

Deuteranopia (green-blind)

#0075F2

Tritanopia (blue-blind)

#008DA6

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #636cf5;
/* rgb */ color: rgb(99, 108, 245);
/* oklch */ color: oklch(59.9% 0.202 275.6);

Tailwind

colors: {
  custom: {
    50: '#9c96f9',
    500: '#636cf5',
    950: '#000000',
  },
}

SCSS

$custom: #636cf5;
$custom-light: #9c96f9;
$custom-dark: #000000;

JSON

{
  "hex": "#636cf5",
  "rgb": {
    "r": 99,
    "g": 108,
    "b": 245
  },
  "hsl": {
    "h": 236.301,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.5989,
    "c": 0.20186,
    "h": 275.6
  },
  "luminance": 0.1997
}

Semantic roles & 50–950 ramp

primary

#636CF5

secondary

#F1EEC3

accent

#D701E5

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636CF5

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

Preview Lab → · Contrast checker → · Palette generator →