#5B63E9#5B63E9

#5B63E9 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.9% C 0.199 H 275.5°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#5B63E9
RGB	rgb(91, 99, 233)
HSL	hsl(237, 76%, 64%)
HSV	hsv(237, 61%, 91%)
CMYK	cmyk(60.9%, 57.5%, 0%, 8.6%)
CIE-LAB	lab(48.30, 36.59, -68.95)
CIE-LCH	lch(48.30, 78.06, 297.95°)
OKLab	oklab(56.89% 0.0191 -0.1982)
OKLCH	oklch(56.89% 0.199 275.5)
XYZ	xyz(23.4794, 17.0291, 79.1246)
Luminance	0.1703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B63E9 #E9E15B

analogous

#5BAAE9 #5B63E9 #9A5BE9

triadic

#5B63E9 #E95B63 #63E95B

tetradic

#5B63E9 #E95BAA #E9E15B #5BE99A

square

#5B63E9 #E95BAA #E9E15B #5BE99A

split-complementary

#5B63E9 #E99A5B #AAE95B

monochromatic

#1821B2 #2530E2 #5B63E9 #9196F0 #C7CAF7

Accessibility & contrast

On white

4.77

#5B63E9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#5B63E9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B63E9

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B63E9	#FFFFFF	#000000	##FFFFFF
##5B63E9	1.00	4.77	4.41	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079ED

Deuteranopia (green-blind)

#006DE6

Tritanopia (blue-blind)

#00839C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5b63e9;
/* rgb */ color: rgb(91, 99, 233);
/* oklch */ color: oklch(56.9% 0.199 275.5);

Tailwind

colors: {
  custom: {
    50: '#978ff1',
    500: '#5b63e9',
    950: '#000000',
  },
}

SCSS

$custom: #5b63e9;
$custom-light: #978ff1;
$custom-dark: #000000;

JSON

{
  "hex": "#5b63e9",
  "rgb": {
    "r": 91,
    "g": 99,
    "b": 233
  },
  "hsl": {
    "h": 236.62,
    "s": 76.344,
    "l": 63.529
  },
  "oklch": {
    "l": 0.56886,
    "c": 0.19912,
    "h": 275.5
  },
  "luminance": 0.17031
}

Semantic roles & 50–950 ramp

primary

#5B63E9

secondary

#E9E6B7

accent

#CD0DD9

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5B63E9

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

Preview Lab → · Contrast checker → · Palette generator →