#636CE9#636CE9

#636CE9 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 59.0% C 0.186 H 276.0°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#636CE9
RGB	rgb(99, 108, 233)
HSL	hsl(236, 75%, 65%)
HSV	hsv(236, 58%, 91%)
CMYK	cmyk(57.5%, 53.6%, 0%, 8.6%)
CIE-LAB	lab(50.99, 32.51, -64.57)
CIE-LCH	lch(50.99, 72.29, 296.73°)
OKLab	oklab(59.03% 0.0194 -0.185)
OKLCH	oklch(59.03% 0.186 276)
XYZ	xyz(25.2114, 19.2591, 79.4638)
Luminance	0.1926 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636CE9 #E9E063

analogous

#63AFE9 #636CE9 #9D63E9

triadic

#636CE9 #E9636C #6CE963

tetradic

#636CE9 #E963AF #E9E063 #63E99D

square

#636CE9 #E963AF #E9E063 #63E99D

split-complementary

#636CE9 #E99D63 #AFE963

monochromatic

#1A25B8 #2D39E1 #636CE9 #999FF1 #CED1F8

Accessibility & contrast

On white

4.33

#636CE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#636CE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636CE9

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636CE9	#FFFFFF	#000000	##000000
##636CE9	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#197FED

Deuteranopia (green-blind)

#0074E6

Tritanopia (blue-blind)

#0089A0

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #636ce9;
/* rgb */ color: rgb(99, 108, 233);
/* oklch */ color: oklch(59.0% 0.186 276.0);

Tailwind

colors: {
  custom: {
    50: '#9a96f1',
    500: '#636ce9',
    950: '#000000',
  },
}

SCSS

$custom: #636ce9;
$custom-light: #9a96f1;
$custom-dark: #000000;

JSON

{
  "hex": "#636ce9",
  "rgb": {
    "r": 99,
    "g": 108,
    "b": 233
  },
  "hsl": {
    "h": 235.97,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.59027,
    "c": 0.18605,
    "h": 276
  },
  "luminance": 0.19261
}

Semantic roles & 50–950 ramp

primary

#636CE9

secondary

#EBE8BD

accent

#CA0ED7

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636CE9

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

Preview Lab → · Contrast checker → · Palette generator →