#5B58BB#5B58BB

#5B58BB is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.5% C 0.151 H 281.0°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#5B58BB
RGB	rgb(91, 88, 187)
HSL	hsl(242, 42%, 54%)
HSV	hsv(242, 53%, 73%)
CMYK	cmyk(51.3%, 52.9%, 0%, 26.7%)
CIE-LAB	lab(42.45, 28.52, -52.07)
CIE-LCH	lch(42.45, 59.37, 298.71°)
OKLab	oklab(51.52% 0.029 -0.1486)
OKLCH	oklch(51.52% 0.151 281)
XYZ	xyz(16.7710, 12.7905, 48.5892)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B58BB #B8BB58

analogous

#5887BB #5B58BB #8D58BB

triadic

#5B58BB #BB5B58 #58BB5B

tetradic

#5B58BB #BB5887 #B8BB58 #58BB8D

square

#5B58BB #BB5887 #B8BB58 #58BB8D

split-complementary

#5B58BB #BB8D58 #87BB58

monochromatic

#2E2C6C #413E98 #5B58BB #8683CD #B0AFDE

Accessibility & contrast

On white

5.90

#5B58BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#5B58BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B58BB

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B58BB	#FFFFFF	#000000	##FFFFFF
##5B58BB	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2368BE

Deuteranopia (green-blind)

#1861B9

Tritanopia (blue-blind)

#356E81

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #5b58bb;
/* rgb */ color: rgb(91, 88, 187);
/* oklch */ color: oklch(51.5% 0.151 281.0);

Tailwind

colors: {
  custom: {
    50: '#9087d0',
    500: '#5b58bb',
    950: '#000000',
  },
}

SCSS

$custom: #5b58bb;
$custom-light: #9087d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b58bb",
  "rgb": {
    "r": 91,
    "g": 88,
    "b": 187
  },
  "hsl": {
    "h": 241.818,
    "s": 42.128,
    "l": 53.922
  },
  "oklch": {
    "l": 0.51524,
    "c": 0.15142,
    "h": 281
  },
  "luminance": 0.12791
}

Semantic roles & 50–950 ramp

primary

#5B58BB

secondary

#CBCDA2

accent

#D256CE

background

#F9F8FC

surface

#F2EFF9

border

#CCCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5B58BB

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

Preview Lab → · Contrast checker → · Palette generator →