#636CFD#636CFD

#636CFD is a mid, highly saturated blue. Relative luminance 0.205; OKLCH L 60.5% C 0.212 H 275.4°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#636CFD
RGB	rgb(99, 108, 253)
HSL	hsl(236, 97%, 69%)
HSV	hsv(236, 61%, 99%)
CMYK	cmyk(60.9%, 57.3%, 0%, 0.8%)
CIE-LAB	lab(52.36, 38.95, -73.50)
CIE-LCH	lch(52.36, 83.18, 297.92°)
OKLab	oklab(60.48% 0.0199 -0.2113)
OKLCH	oklch(60.48% 0.212 275.4)
XYZ	xyz(28.2320, 20.4674, 95.3723)
Luminance	0.2047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636CFD #FDF463

analogous

#63B9FD #636CFD #A763FD

triadic

#636CFD #FD636C #6CFD63

tetradic

#636CFD #FD63B9 #FDF463 #63FDA7

square

#636CFD #FD63B9 #FDF463 #63FDA7

split-complementary

#636CFD #FDA763 #B9FD63

monochromatic

#0310E3 #2733FC #636CFD #9FA5FE #DCDEFF

Accessibility & contrast

On white

4.12

#636CFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#636CFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636CFD

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636CFD	#FFFFFF	#000000	##000000
##636CFD	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0084FF

Deuteranopia (green-blind)

#0076FA

Tritanopia (blue-blind)

#008FAA

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #636cfd;
/* rgb */ color: rgb(99, 108, 253);
/* oklch */ color: oklch(60.5% 0.212 275.4);

Tailwind

colors: {
  custom: {
    50: '#9d96ff',
    500: '#636cfd',
    950: '#000000',
  },
}

SCSS

$custom: #636cfd;
$custom-light: #9d96ff;
$custom-dark: #000000;

JSON

{
  "hex": "#636cfd",
  "rgb": {
    "r": 99,
    "g": 108,
    "b": 253
  },
  "hsl": {
    "h": 236.494,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.60484,
    "c": 0.21221,
    "h": 275.4
  },
  "luminance": 0.2047
}

Semantic roles & 50–950 ramp

primary

#636CFD

secondary

#F4F2C7

accent

#D800E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #636CFD

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

Preview Lab → · Contrast checker → · Palette generator →