#636ECE#636ECE

#636ECE is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.6% C 0.146 H 275.9°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#636ECE
RGB	rgb(99, 110, 206)
HSL	hsl(234, 52%, 60%)
HSV	hsv(234, 52%, 81%)
CMYK	cmyk(51.9%, 46.6%, 0%, 19.2%)
CIE-LAB	lab(49.81, 22.68, -51.19)
CIE-LCH	lch(49.81, 55.99, 293.89°)
OKLab	oklab(57.6% 0.015 -0.1457)
OKLCH	oklch(57.6% 0.146 275.9)
XYZ	xyz(21.8586, 18.2594, 60.7531)
Luminance	0.1826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636ECE #CEC363

analogous

#63A3CE #636ECE #8E63CE

triadic

#636ECE #CE636E #6ECE63

tetradic

#636ECE #CE63A3 #CEC363 #63CE8E

square

#636ECE #CE63A3 #CEC363 #63CE8E

split-complementary

#636ECE #CE8E63 #A3CE63

monochromatic

#2C358B #3A47BA #636ECE #9299DD #C0C5EB

Accessibility & contrast

On white

4.51

#636ECE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#636ECE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636ECE

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636ECE	#FFFFFF	#000000	##000000
##636ECE	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#437BD2

Deuteranopia (green-blind)

#3872CC

Tritanopia (blue-blind)

#348394

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #636ece;
/* rgb */ color: rgb(99, 110, 206);
/* oklch */ color: oklch(57.6% 0.146 275.9);

Tailwind

colors: {
  custom: {
    50: '#9697dd',
    500: '#636ece',
    950: '#000000',
  },
}

SCSS

$custom: #636ece;
$custom-light: #9697dd;
$custom-dark: #000000;

JSON

{
  "hex": "#636ece",
  "rgb": {
    "r": 99,
    "g": 110,
    "b": 206
  },
  "hsl": {
    "h": 233.832,
    "s": 52.195,
    "l": 59.804
  },
  "oklch": {
    "l": 0.57598,
    "c": 0.14643,
    "h": 275.9
  },
  "luminance": 0.18261
}

Semantic roles & 50–950 ramp

primary

#636ECE

secondary

#DBD7B2

accent

#CD4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #636ECE

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

Preview Lab → · Contrast checker → · Palette generator →