#636AF8#636AF8

#636AF8 is a mid, highly saturated blue. Relative luminance 0.197; OKLCH L 59.8% C 0.208 H 276.0°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#636AF8
RGB	rgb(99, 106, 248)
HSL	hsl(237, 91%, 68%)
HSV	hsv(237, 60%, 97%)
CMYK	cmyk(60.1%, 57.3%, 0%, 2.7%)
CIE-LAB	lab(51.54, 38.54, -72.06)
CIE-LCH	lch(51.54, 81.72, 298.14°)
OKLab	oklab(59.76% 0.0216 -0.2071)
OKLCH	oklch(59.76% 0.208 276)
XYZ	xyz(27.2374, 19.7359, 91.1628)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636AF8 #F8F163

analogous

#63B5F8 #636AF8 #A663F8

triadic

#636AF8 #F8636A #6AF863

tetradic

#636AF8 #F863B5 #F8F163 #63F8A6

square

#636AF8 #F863B5 #F8F163 #63F8A6

split-complementary

#636AF8 #F8A663 #B5F863

monochromatic

#0A13D7 #2832F5 #636AF8 #9EA2FB #D8DAFD

Accessibility & contrast

On white

4.24

#636AF8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#636AF8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636AF8

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636AF8	#FFFFFF	#000000	##000000
##636AF8	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0081FD

Deuteranopia (green-blind)

#0075F5

Tritanopia (blue-blind)

#008CA7

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #636af8;
/* rgb */ color: rgb(99, 106, 248);
/* oklch */ color: oklch(59.8% 0.208 276.0);

Tailwind

colors: {
  custom: {
    50: '#9d94fb',
    500: '#636af8',
    950: '#000000',
  },
}

SCSS

$custom: #636af8;
$custom-light: #9d94fb;
$custom-dark: #000000;

JSON

{
  "hex": "#636af8",
  "rgb": {
    "r": 99,
    "g": 106,
    "b": 248
  },
  "hsl": {
    "h": 237.181,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.59761,
    "c": 0.20821,
    "h": 276
  },
  "luminance": 0.19738
}

Semantic roles & 50–950 ramp

primary

#636AF8

secondary

#F2F0C5

accent

#DB00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #636AF8

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

Preview Lab → · Contrast checker → · Palette generator →