#636AF3#636AF3

#636AF3 is a mid, highly saturated blue. Relative luminance 0.194; OKLCH L 59.4% C 0.202 H 276.2°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#636AF3
RGB	rgb(99, 106, 243)
HSL	hsl(237, 86%, 67%)
HSV	hsv(237, 59%, 95%)
CMYK	cmyk(59.3%, 56.4%, 0%, 4.7%)
CIE-LAB	lab(51.19, 36.93, -69.84)
CIE-LCH	lch(51.19, 79.01, 297.87°)
OKLab	oklab(59.39% 0.0216 -0.2006)
OKLCH	oklch(59.39% 0.202 276.2)
XYZ	xyz(26.4720, 19.4298, 87.1320)
Luminance	0.1943 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636AF3 #F3EC63

analogous

#63B2F3 #636AF3 #A463F3

triadic

#636AF3 #F3636A #6AF363

tetradic

#636AF3 #F363B2 #F3EC63 #63F3A4

square

#636AF3 #F363B2 #F3EC63 #63F3A4

split-complementary

#636AF3 #F3A463 #B2F363

monochromatic

#1019CC #2A34EF #636AF3 #9CA0F7 #D5D7FC

Accessibility & contrast

On white

4.30

#636AF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#636AF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636AF3

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636AF3	#FFFFFF	#000000	##000000
##636AF3	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0080F8

Deuteranopia (green-blind)

#0074F0

Tritanopia (blue-blind)

#008BA4

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #636af3;
/* rgb */ color: rgb(99, 106, 243);
/* oklch */ color: oklch(59.4% 0.202 276.2);

Tailwind

colors: {
  custom: {
    50: '#9c94f8',
    500: '#636af3',
    950: '#000000',
  },
}

SCSS

$custom: #636af3;
$custom-light: #9c94f8;
$custom-dark: #000000;

JSON

{
  "hex": "#636af3",
  "rgb": {
    "r": 99,
    "g": 106,
    "b": 243
  },
  "hsl": {
    "h": 237.083,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.59389,
    "c": 0.20172,
    "h": 276.2
  },
  "luminance": 0.19432
}

Semantic roles & 50–950 ramp

primary

#636AF3

secondary

#F0EEC2

accent

#D703E2

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636AF3

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

Preview Lab → · Contrast checker → · Palette generator →