#5B73FB#5B73FB

#5B73FB is a mid, highly saturated blue. Relative luminance 0.215; OKLCH L 61.1% C 0.203 H 271.5°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#5B73FB
RGB	rgb(91, 115, 251)
HSL	hsl(231, 95%, 67%)
HSV	hsv(231, 64%, 98%)
CMYK	cmyk(63.7%, 54.2%, 0%, 1.6%)
CIE-LAB	lab(53.44, 32.81, -70.67)
CIE-LCH	lch(53.44, 77.91, 294.91°)
OKLab	oklab(61.12% 0.0054 -0.2031)
OKLCH	oklch(61.12% 0.203 271.5)
XYZ	xyz(27.8519, 21.4482, 93.9202)
Luminance	0.2145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B73FB #FBE35B

analogous

#5BC3FB #5B73FB #935BFB

triadic

#5B73FB #FB5B73 #73FB5B

tetradic

#5B73FB #FB5BC3 #FBE35B #5BFB93

square

#5B73FB #FB5BC3 #FBE35B #5BFB93

split-complementary

#5B73FB #FB935B #C3FB5B

monochromatic

#0525D6 #1F40FA #5B73FB #97A6FC #D2D9FE

Accessibility & contrast

On white

3.97

#5B73FB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#5B73FB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B73FB

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B73FB	#FFFFFF	#000000	##000000
##5B73FB	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0087FF

Deuteranopia (green-blind)

#0079F8

Tritanopia (blue-blind)

#0093AC

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #5b73fb;
/* rgb */ color: rgb(91, 115, 251);
/* oklch */ color: oklch(61.1% 0.203 271.5);

Tailwind

colors: {
  custom: {
    50: '#999bfd',
    500: '#5b73fb',
    950: '#000000',
  },
}

SCSS

$custom: #5b73fb;
$custom-light: #999bfd;
$custom-dark: #000000;

JSON

{
  "hex": "#5b73fb",
  "rgb": {
    "r": 91,
    "g": 115,
    "b": 251
  },
  "hsl": {
    "h": 231,
    "s": 95.238,
    "l": 67.059
  },
  "oklch": {
    "l": 0.61118,
    "c": 0.20315,
    "h": 271.5
  },
  "luminance": 0.21451
}

Semantic roles & 50–950 ramp

primary

#5B73FB

secondary

#F2EBC0

accent

#C300E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E18

muted

#7F7E86

Preview Lab

Preview with #5B73FB

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

Preview Lab → · Contrast checker → · Palette generator →