#636DCE#636DCE

#636DCE is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.4% C 0.148 H 276.3°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#636DCE
RGB	rgb(99, 109, 206)
HSL	hsl(234, 52%, 60%)
HSV	hsv(234, 52%, 81%)
CMYK	cmyk(51.9%, 47.1%, 0%, 19.2%)
CIE-LAB	lab(49.55, 23.29, -51.60)
CIE-LCH	lch(49.55, 56.61, 294.29°)
OKLab	oklab(57.4% 0.0161 -0.1469)
OKLCH	oklch(57.4% 0.148 276.3)
XYZ	xyz(21.7513, 18.0448, 60.7174)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636DCE #CEC463

analogous

#63A2CE #636DCE #8F63CE

triadic

#636DCE #CE636D #6DCE63

tetradic

#636DCE #CE63A2 #CEC463 #63CE8F

square

#636DCE #CE63A2 #CEC463 #63CE8F

split-complementary

#636DCE #CE8F63 #A2CE63

monochromatic

#2C358B #3A46BA #636DCE #9299DD #C0C4EB

Accessibility & contrast

On white

4.56

#636DCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#636DCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #636DCE

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636DCE	#FFFFFF	#000000	##000000
##636DCE	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#417AD2

Deuteranopia (green-blind)

#3672CC

Tritanopia (blue-blind)

#348293

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #636dce;
/* rgb */ color: rgb(99, 109, 206);
/* oklch */ color: oklch(57.4% 0.148 276.3);

Tailwind

colors: {
  custom: {
    50: '#9696dd',
    500: '#636dce',
    950: '#000000',
  },
}

SCSS

$custom: #636dce;
$custom-light: #9696dd;
$custom-dark: #000000;

JSON

{
  "hex": "#636dce",
  "rgb": {
    "r": 99,
    "g": 109,
    "b": 206
  },
  "hsl": {
    "h": 234.393,
    "s": 52.195,
    "l": 59.804
  },
  "oklch": {
    "l": 0.57401,
    "c": 0.14777,
    "h": 276.3
  },
  "luminance": 0.18046
}

Semantic roles & 50–950 ramp

primary

#636DCE

secondary

#DBD7B2

accent

#CE4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #636DCE

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

Preview Lab → · Contrast checker → · Palette generator →