#636EBE#636EBE

#636EBE is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.6% C 0.124 H 275.8°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#636EBE
RGB	rgb(99, 110, 190)
HSL	hsl(233, 41%, 57%)
HSV	hsv(233, 48%, 75%)
CMYK	cmyk(47.9%, 42.1%, 0%, 25.5%)
CIE-LAB	lab(48.91, 17.67, -43.44)
CIE-LCH	lch(48.91, 46.90, 292.14°)
OKLab	oklab(56.62% 0.0125 -0.123)
OKLCH	oklch(56.62% 0.124 275.8)
XYZ	xyz(20.0129, 17.5211, 51.0326)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636EBE #BEB363

analogous

#639CBE #636EBE #8663BE

triadic

#636EBE #BE636E #6EBE63

tetradic

#636EBE #BE639C #BEB363 #63BE86

square

#636EBE #BE639C #BEB363 #63BE86

split-complementary

#636EBE #BE8663 #9CBE63

monochromatic

#313976 #434EA1 #636EBE #8E96D0 #B9BEE2

Accessibility & contrast

On white

4.66

#636EBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#636EBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #636EBE

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636EBE	#FFFFFF	#000000	##FFFFFF
##636EBE	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F78C1

Deuteranopia (green-blind)

#4771BC

Tritanopia (blue-blind)

#417F8D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #636ebe;
/* rgb */ color: rgb(99, 110, 190);
/* oklch */ color: oklch(56.6% 0.124 275.8);

Tailwind

colors: {
  custom: {
    50: '#9497d2',
    500: '#636ebe',
    950: '#000000',
  },
}

SCSS

$custom: #636ebe;
$custom-light: #9497d2;
$custom-dark: #000000;

JSON

{
  "hex": "#636ebe",
  "rgb": {
    "r": 99,
    "g": 110,
    "b": 190
  },
  "hsl": {
    "h": 232.747,
    "s": 41.176,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56621,
    "c": 0.12359,
    "h": 275.8
  },
  "luminance": 0.17522
}

Semantic roles & 50–950 ramp

primary

#636EBE

secondary

#D1CDAC

accent

#C257D1

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0D14

muted

#7E7E82

Preview Lab

Preview with #636EBE

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

Preview Lab → · Contrast checker → · Palette generator →