#5B42DD#5B42DD

#5B42DD is a mid, highly saturated blue. Relative luminance 0.113; OKLCH L 50.7% C 0.223 H 282.3°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#5B42DD
RGB	rgb(91, 66, 221)
HSL	hsl(250, 70%, 56%)
HSV	hsv(250, 70%, 87%)
CMYK	cmyk(58.8%, 70.1%, 0%, 13.3%)
CIE-LAB	lab(40.15, 51.92, -75.45)
CIE-LCH	lch(40.15, 91.59, 304.53°)
OKLab	oklab(50.65% 0.0476 -0.2174)
OKLCH	oklch(50.65% 0.223 282.3)
XYZ	xyz(19.3097, 11.3397, 69.5639)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B42DD #C4DD42

analogous

#4277DD #5B42DD #A842DD

triadic

#5B42DD #DD5B42 #42DD5B

tetradic

#5B42DD #DD4277 #C4DD42 #42DDA8

square

#5B42DD #DD4277 #C4DD42 #42DDA8

split-complementary

#5B42DD #DDA842 #77DD42

monochromatic

#2C198C #3C22BF #5B42DD #8876E6 #B5AAF0

Accessibility & contrast

On white

6.43

#5B42DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#5B42DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B42DD

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B42DD	#FFFFFF	#000000	##FFFFFF
##5B42DD	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E2

Deuteranopia (green-blind)

#0059DA

Tritanopia (blue-blind)

#006C8B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #5b42dd;
/* rgb */ color: rgb(91, 66, 221);
/* oklch */ color: oklch(50.7% 0.223 282.3);

Tailwind

colors: {
  custom: {
    50: '#9779e9',
    500: '#5b42dd',
    950: '#000000',
  },
}

SCSS

$custom: #5b42dd;
$custom-light: #9779e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5b42dd",
  "rgb": {
    "r": 91,
    "g": 66,
    "b": 221
  },
  "hsl": {
    "h": 249.677,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.50654,
    "c": 0.22252,
    "h": 282.3
  },
  "luminance": 0.11341
}

Semantic roles & 50–950 ramp

primary

#5B42DD

secondary

#D3DD9D

accent

#EC3BD0

background

#FAF7FE

surface

#F3EDFD

border

#CDC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #5B42DD

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

Preview Lab → · Contrast checker → · Palette generator →