#5B63CB#5B63CB

#5B63CB is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.7% C 0.159 H 276.5°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#5B63CB
RGB	rgb(91, 99, 203)
HSL	hsl(236, 52%, 58%)
HSV	hsv(236, 55%, 80%)
CMYK	cmyk(55.2%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(46.26, 26.82, -55.20)
CIE-LCH	lch(46.26, 61.37, 295.91°)
OKLab	oklab(54.71% 0.0179 -0.1577)
OKLCH	oklch(54.71% 0.159 276.5)
XYZ	xyz(19.5523, 15.4583, 58.4418)
Luminance	0.1546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B63CB #CBC35B

analogous

#5B9BCB #5B63CB #8B5BCB

triadic

#5B63CB #CB5B63 #63CB5B

tetradic

#5B63CB #CB5B9B #CBC35B #5BCB8B

square

#5B63CB #CB5B9B #CBC35B #5BCB8B

split-complementary

#5B63CB #CB8B5B #9BCB5B

monochromatic

#293082 #3841B1 #5B63CB #898FDA #B8BBE8

Accessibility & contrast

On white

5.13

#5B63CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#5B63CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B63CB

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B63CB	#FFFFFF	#000000	##FFFFFF
##5B63CB	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C72CF

Deuteranopia (green-blind)

#1969C9

Tritanopia (blue-blind)

#217A8D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #5b63cb;
/* rgb */ color: rgb(91, 99, 203);
/* oklch */ color: oklch(54.7% 0.159 276.5);

Tailwind

colors: {
  custom: {
    50: '#928fdb',
    500: '#5b63cb',
    950: '#000000',
  },
}

SCSS

$custom: #5b63cb;
$custom-light: #928fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#5b63cb",
  "rgb": {
    "r": 91,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 235.714,
    "s": 51.852,
    "l": 57.647
  },
  "oklch": {
    "l": 0.54713,
    "c": 0.15877,
    "h": 276.5
  },
  "luminance": 0.1546
}

Semantic roles & 50–950 ramp

primary

#5B63CB

secondary

#D7D4AA

accent

#D14CDB

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #5B63CB

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

Preview Lab → · Contrast checker → · Palette generator →