#5B56BB#5B56BB

#5B56BB is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.2% C 0.154 H 281.7°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#5B56BB
RGB	rgb(91, 86, 187)
HSL	hsl(243, 43%, 54%)
HSV	hsv(243, 54%, 73%)
CMYK	cmyk(51.3%, 54%, 0%, 26.7%)
CIE-LAB	lab(41.95, 29.76, -52.87)
CIE-LCH	lch(41.95, 60.67, 299.38°)
OKLab	oklab(51.15% 0.0312 -0.151)
OKLCH	oklch(51.15% 0.154 281.7)
XYZ	xyz(16.6091, 12.4667, 48.5352)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B56BB #B6BB56

analogous

#5683BB #5B56BB #8D56BB

triadic

#5B56BB #BB5B56 #56BB5B

tetradic

#5B56BB #BB5683 #B6BB56 #56BB8D

square

#5B56BB #BB5683 #B6BB56 #56BB8D

split-complementary

#5B56BB #BB8D56 #83BB56

monochromatic

#2E2B6B #413D97 #5B56BB #8582CD #B0ADDE

Accessibility & contrast

On white

6.01

#5B56BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#5B56BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B56BB

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B56BB	#FFFFFF	#000000	##FFFFFF
##5B56BB	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D67BE

Deuteranopia (green-blind)

#105FB9

Tritanopia (blue-blind)

#356D80

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #5b56bb;
/* rgb */ color: rgb(91, 86, 187);
/* oklch */ color: oklch(51.2% 0.154 281.7);

Tailwind

colors: {
  custom: {
    50: '#9085d0',
    500: '#5b56bb',
    950: '#000000',
  },
}

SCSS

$custom: #5b56bb;
$custom-light: #9085d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b56bb",
  "rgb": {
    "r": 91,
    "g": 86,
    "b": 187
  },
  "hsl": {
    "h": 242.97,
    "s": 42.616,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51152,
    "c": 0.15419,
    "h": 281.7
  },
  "luminance": 0.12468
}

Semantic roles & 50–950 ramp

primary

#5B56BB

secondary

#CACCA1

accent

#D255CC

background

#F9F8FC

surface

#F2EFF9

border

#CCCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5B56BB

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

Preview Lab → · Contrast checker → · Palette generator →