#5B57E8#5B57E8

#5B57E8 is a mid, highly saturated blue. Relative luminance 0.149; OKLCH L 54.8% C 0.212 H 278.0°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#5B57E8
RGB	rgb(91, 87, 232)
HSL	hsl(242, 76%, 63%)
HSV	hsv(242, 63%, 91%)
CMYK	cmyk(60.8%, 62.5%, 0%, 9%)
CIE-LAB	lab(45.45, 43.44, -73.03)
CIE-LCH	lch(45.45, 84.97, 300.75°)
OKLab	oklab(54.77% 0.0295 -0.2103)
OKLCH	oklch(54.77% 0.212 278)
XYZ	xyz(22.2834, 14.8650, 78.0233)
Luminance	0.1487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B57E8 #E4E857

analogous

#579CE8 #5B57E8 #A357E8

triadic

#5B57E8 #E85B57 #57E85B

tetradic

#5B57E8 #E8579C #E4E857 #57E8A3

square

#5B57E8 #E8579C #E4E857 #57E8A3

split-complementary

#5B57E8 #E8A357 #9CE857

monochromatic

#1C18AD #2621E1 #5B57E8 #908DEF #C4C3F7

Accessibility & contrast

On white

5.29

#5B57E8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#5B57E8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B57E8

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B57E8	#FFFFFF	#000000	##FFFFFF
##5B57E8	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072ED

Deuteranopia (green-blind)

#0066E5

Tritanopia (blue-blind)

#007B97

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #5b57e8;
/* rgb */ color: rgb(91, 87, 232);
/* oklch */ color: oklch(54.8% 0.212 278.0);

Tailwind

colors: {
  custom: {
    50: '#9787f0',
    500: '#5b57e8',
    950: '#000000',
  },
}

SCSS

$custom: #5b57e8;
$custom-light: #9787f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b57e8",
  "rgb": {
    "r": 91,
    "g": 87,
    "b": 232
  },
  "hsl": {
    "h": 241.655,
    "s": 75.916,
    "l": 62.549
  },
  "oklch": {
    "l": 0.54765,
    "c": 0.21231,
    "h": 278
  },
  "luminance": 0.14867
}

Semantic roles & 50–950 ramp

primary

#5B57E8

secondary

#E6E8B3

accent

#D80DD3

background

#FAF8FE

surface

#F3EFFD

border

#CDCAD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #5B57E8

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

Preview Lab → · Contrast checker → · Palette generator →