#636DF0#636DF0

#636DF0 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 59.7% C 0.194 H 275.5°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#636DF0
RGB	rgb(99, 109, 240)
HSL	hsl(236, 82%, 66%)
HSV	hsv(236, 59%, 94%)
CMYK	cmyk(58.8%, 54.6%, 0%, 5.9%)
CIE-LAB	lab(51.70, 34.16, -67.34)
CIE-LCH	lch(51.70, 75.51, 296.90°)
OKLab	oklab(59.71% 0.0188 -0.1932)
OKLCH	oklch(59.71% 0.194 275.5)
XYZ	xyz(26.3373, 19.8792, 84.8704)
Luminance	0.1988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636DF0 #F0E663

analogous

#63B4F0 #636DF0 #A063F0

triadic

#636DF0 #F0636D #6DF063

tetradic

#636DF0 #F063B4 #F0E663 #63F0A0

square

#636DF0 #F063B4 #F0E663 #63F0A0

split-complementary

#636DF0 #F0A063 #B4F063

monochromatic

#1320C6 #2B39EB #636DF0 #9BA1F5 #D3D6FB

Accessibility & contrast

On white

4.22

#636DF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#636DF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636DF0

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636DF0	#FFFFFF	#000000	##000000
##636DF0	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0581F4

Deuteranopia (green-blind)

#0075ED

Tritanopia (blue-blind)

#008CA4

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #636df0;
/* rgb */ color: rgb(99, 109, 240);
/* oklch */ color: oklch(59.7% 0.194 275.5);

Tailwind

colors: {
  custom: {
    50: '#9b96f6',
    500: '#636df0',
    950: '#000000',
  },
}

SCSS

$custom: #636df0;
$custom-light: #9b96f6;
$custom-dark: #000000;

JSON

{
  "hex": "#636df0",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 240
  },
  "hsl": {
    "h": 235.745,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.59707,
    "c": 0.19407,
    "h": 275.5
  },
  "luminance": 0.19881
}

Semantic roles & 50–950 ramp

primary

#636DF0

secondary

#EEEBC1

accent

#D007DF

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636DF0

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

Preview Lab → · Contrast checker → · Palette generator →