#636DF3#636DF3

#636DF3 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.9% C 0.198 H 275.5°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#636DF3
RGB	rgb(99, 109, 243)
HSL	hsl(236, 86%, 67%)
HSV	hsv(236, 59%, 95%)
CMYK	cmyk(59.3%, 55.1%, 0%, 4.7%)
CIE-LAB	lab(51.90, 35.13, -68.68)
CIE-LCH	lch(51.90, 77.14, 297.09°)
OKLab	oklab(59.92% 0.0188 -0.1971)
OKLCH	oklch(59.92% 0.198 275.5)
XYZ	xyz(26.7866, 20.0589, 87.2368)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636DF3 #F3E963

analogous

#63B5F3 #636DF3 #A163F3

triadic

#636DF3 #F3636D #6DF363

tetradic

#636DF3 #F363B5 #F3E963 #63F3A1

square

#636DF3 #F363B5 #F3E963 #63F3A1

split-complementary

#636DF3 #F3A163 #B5F363

monochromatic

#101DCC #2A38EF #636DF3 #9CA2F7 #D5D7FC

Accessibility & contrast

On white

4.19

#636DF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#636DF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636DF3

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636DF3	#FFFFFF	#000000	##000000
##636DF3	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0082F8

Deuteranopia (green-blind)

#0076F0

Tritanopia (blue-blind)

#008DA5

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #636df3;
/* rgb */ color: rgb(99, 109, 243);
/* oklch */ color: oklch(59.9% 0.198 275.5);

Tailwind

colors: {
  custom: {
    50: '#9c96f8',
    500: '#636df3',
    950: '#000000',
  },
}

SCSS

$custom: #636df3;
$custom-light: #9c96f8;
$custom-dark: #000000;

JSON

{
  "hex": "#636df3",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 243
  },
  "hsl": {
    "h": 235.833,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.59923,
    "c": 0.19802,
    "h": 275.5
  },
  "luminance": 0.20061
}

Semantic roles & 50–950 ramp

primary

#636DF3

secondary

#F0EDC2

accent

#D303E2

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #636DF3

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

Preview Lab → · Contrast checker → · Palette generator →