#5B63F3#5B63F3

#5B63F3 is a mid, highly saturated blue. Relative luminance 0.176; OKLCH L 57.7% C 0.212 H 275.1°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#5B63F3
RGB	rgb(91, 99, 243)
HSL	hsl(237, 86%, 65%)
HSV	hsv(237, 63%, 95%)
CMYK	cmyk(62.6%, 59.3%, 0%, 4.7%)
CIE-LAB	lab(49.03, 39.85, -73.37)
CIE-LCH	lch(49.03, 83.49, 298.50°)
OKLab	oklab(57.66% 0.0189 -0.2112)
OKLCH	oklch(57.66% 0.212 275.1)
XYZ	xyz(24.9486, 17.6168, 86.8623)
Luminance	0.1762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B63F3 #F3EB5B

analogous

#5BAFF3 #5B63F3 #9F5BF3

triadic

#5B63F3 #F35B63 #63F35B

tetradic

#5B63F3 #F35BAF #F3EB5B #5BF39F

square

#5B63F3 #F35BAF #F3EB5B #5BF39F

split-complementary

#5B63F3 #F39F5B #AFF35B

monochromatic

#0E18C5 #222DEF #5B63F3 #9499F7 #CDCFFB

Accessibility & contrast

On white

4.64

#5B63F3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#5B63F3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5B63F3

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B63F3	#FFFFFF	#000000	##FFFFFF
##5B63F3	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BF8

Deuteranopia (green-blind)

#006EF0

Tritanopia (blue-blind)

#0086A2

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5b63f3;
/* rgb */ color: rgb(91, 99, 243);
/* oklch */ color: oklch(57.7% 0.212 275.1);

Tailwind

colors: {
  custom: {
    50: '#988ff8',
    500: '#5b63f3',
    950: '#000000',
  },
}

SCSS

$custom: #5b63f3;
$custom-light: #988ff8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b63f3",
  "rgb": {
    "r": 91,
    "g": 99,
    "b": 243
  },
  "hsl": {
    "h": 236.842,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.57657,
    "c": 0.21205,
    "h": 275.1
  },
  "luminance": 0.17619
}

Semantic roles & 50–950 ramp

primary

#5B63F3

secondary

#EEECBB

accent

#D703E3

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5B63F3

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

Preview Lab → · Contrast checker → · Palette generator →