#5B57E5#5B57E5

#5B57E5 is a mid, highly saturated blue. Relative luminance 0.147; OKLCH L 54.5% C 0.209 H 278.2°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#5B57E5
RGB	rgb(91, 87, 229)
HSL	hsl(242, 73%, 62%)
HSV	hsv(242, 62%, 90%)
CMYK	cmyk(60.3%, 62%, 0%, 10.2%)
CIE-LAB	lab(45.22, 42.49, -71.71)
CIE-LCH	lch(45.22, 83.35, 300.65°)
OKLab	oklab(54.52% 0.0297 -0.2064)
OKLCH	oklch(54.52% 0.209 278.2)
XYZ	xyz(21.8609, 14.6960, 75.7982)
Luminance	0.1470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B57E5 #E1E557

analogous

#579AE5 #5B57E5 #A257E5

triadic

#5B57E5 #E55B57 #57E55B

tetradic

#5B57E5 #E5579A #E1E557 #57E5A2

square

#5B57E5 #E5579A #E1E557 #57E5A2

split-complementary

#5B57E5 #E5A257 #9AE557

monochromatic

#1E1AA8 #2722DD #5B57E5 #8F8CED #C2C1F5

Accessibility & contrast

On white

5.33

#5B57E5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#5B57E5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B57E5

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B57E5	#FFFFFF	#000000	##FFFFFF
##5B57E5	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071EA

Deuteranopia (green-blind)

#0065E2

Tritanopia (blue-blind)

#007A96

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #5b57e5;
/* rgb */ color: rgb(91, 87, 229);
/* oklch */ color: oklch(54.5% 0.209 278.2);

Tailwind

colors: {
  custom: {
    50: '#9787ee',
    500: '#5b57e5',
    950: '#000000',
  },
}

SCSS

$custom: #5b57e5;
$custom-light: #9787ee;
$custom-dark: #000000;

JSON

{
  "hex": "#5b57e5",
  "rgb": {
    "r": 91,
    "g": 87,
    "b": 229
  },
  "hsl": {
    "h": 241.69,
    "s": 73.196,
    "l": 61.961
  },
  "oklch": {
    "l": 0.54521,
    "c": 0.20852,
    "h": 278.2
  },
  "luminance": 0.14698
}

Semantic roles & 50–950 ramp

primary

#5B57E5

secondary

#E5E6B2

accent

#D510D0

background

#FAF8FE

surface

#F3EFFD

border

#CDCAD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #5B57E5

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

Preview Lab → · Contrast checker → · Palette generator →