#5B51EA#5B51EA

#5B51EA is a mid, highly saturated blue. Relative luminance 0.141; OKLCH L 54.0% C 0.222 H 278.9°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#5B51EA
RGB	rgb(91, 81, 234)
HSL	hsl(244, 78%, 62%)
HSV	hsv(244, 65%, 92%)
CMYK	cmyk(61.1%, 65.4%, 0%, 8.2%)
CIE-LAB	lab(44.30, 47.55, -76.03)
CIE-LCH	lch(44.30, 89.68, 302.03°)
OKLab	oklab(53.98% 0.0341 -0.2191)
OKLCH	oklch(53.98% 0.222 278.9)
XYZ	xyz(22.1033, 14.0478, 79.3727)
Luminance	0.1405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B51EA #E0EA51

analogous

#5193EA #5B51EA #A851EA

triadic

#5B51EA #EA5B51 #51EA5B

tetradic

#5B51EA #EA5193 #E0EA51 #51EAA8

square

#5B51EA #EA5193 #E0EA51 #51EAA8

split-complementary

#5B51EA #EAA851 #93EA51

monochromatic

#1F15AC #281BE2 #5B51EA #8E88F1 #C2BEF7

Accessibility & contrast

On white

5.51

#5B51EA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#5B51EA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B51EA

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B51EA	#FFFFFF	#000000	##FFFFFF
##5B51EA	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FEF

Deuteranopia (green-blind)

#0063E7

Tritanopia (blue-blind)

#007997

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #5b51ea;
/* rgb */ color: rgb(91, 81, 234);
/* oklch */ color: oklch(54.0% 0.222 278.9);

Tailwind

colors: {
  custom: {
    50: '#9883f2',
    500: '#5b51ea',
    950: '#000000',
  },
}

SCSS

$custom: #5b51ea;
$custom-light: #9883f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b51ea",
  "rgb": {
    "r": 91,
    "g": 81,
    "b": 234
  },
  "hsl": {
    "h": 243.922,
    "s": 78.462,
    "l": 61.765
  },
  "oklch": {
    "l": 0.5398,
    "c": 0.22173,
    "h": 278.9
  },
  "luminance": 0.1405
}

Semantic roles & 50–950 ramp

primary

#5B51EA

secondary

#E4E8AF

accent

#DB0BCD

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #5B51EA

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

Preview Lab → · Contrast checker → · Palette generator →