#5A51BB#5A51BB

#5A51BB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 50.2% C 0.161 H 282.7°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#5A51BB
RGB	rgb(90, 81, 187)
HSL	hsl(245, 44%, 53%)
HSV	hsv(245, 57%, 73%)
CMYK	cmyk(51.9%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(40.65, 32.63, -54.97)
CIE-LCH	lch(40.65, 63.93, 300.69°)
OKLab	oklab(50.16% 0.0356 -0.1572)
OKLCH	oklch(50.16% 0.161 282.7)
XYZ	xyz(16.1258, 11.6455, 48.4022)
Luminance	0.1165 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A51BB #B2BB51

analogous

#517DBB #5A51BB #8F51BB

triadic

#5A51BB #BB5A51 #51BB5A

tetradic

#5A51BB #BB517D #B2BB51 #51BB8F

square

#5A51BB #BB517D #B2BB51 #51BB8F

split-complementary

#5A51BB #BB8F51 #7DBB51

monochromatic

#2E2969 #423A95 #5A51BB #847DCC #ADA9DD

Accessibility & contrast

On white

6.31

#5A51BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#5A51BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5A51BB

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A51BB	#FFFFFF	#000000	##FFFFFF
##5A51BB	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0163BF

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#33697E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #5a51bb;
/* rgb */ color: rgb(90, 81, 187);
/* oklch */ color: oklch(50.2% 0.161 282.7);

Tailwind

colors: {
  custom: {
    50: '#9082d0',
    500: '#5a51bb',
    950: '#000000',
  },
}

SCSS

$custom: #5a51bb;
$custom-light: #9082d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5a51bb",
  "rgb": {
    "r": 90,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 245.094,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50164,
    "c": 0.16121,
    "h": 282.7
  },
  "luminance": 0.11646
}

Semantic roles & 50–950 ramp

primary

#5A51BB

secondary

#C7CB9D

accent

#D454C9

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5A51BB

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

Preview Lab → · Contrast checker → · Palette generator →