#5C51BB#5C51BB

#5C51BB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.3% C 0.161 H 283.7°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#5C51BB
RGB	rgb(92, 81, 187)
HSL	hsl(246, 44%, 53%)
HSV	hsv(246, 57%, 73%)
CMYK	cmyk(50.8%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(40.81, 33.05, -54.70)
CIE-LCH	lch(40.81, 63.91, 301.14°)
OKLab	oklab(50.33% 0.0381 -0.1564)
OKLCH	oklch(50.33% 0.161 283.7)
XYZ	xyz(16.3230, 11.7472, 48.4114)
Luminance	0.1175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5C51BB #B0BB51

analogous

#517BBB #5C51BB #9151BB

triadic

#5C51BB #BB5C51 #51BB5C

tetradic

#5C51BB #BB517B #B0BB51 #51BB91

square

#5C51BB #BB517B #B0BB51 #51BB91

split-complementary

#5C51BB #BB9151 #7BBB51

monochromatic

#302969 #443A95 #5C51BB #857DCC #AEA9DD

Accessibility & contrast

On white

6.27

#5C51BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#5C51BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5C51BB

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5C51BB	#FFFFFF	#000000	##FFFFFF
##5C51BB	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0464BF

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#38697E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #5c51bb;
/* rgb */ color: rgb(92, 81, 187);
/* oklch */ color: oklch(50.3% 0.161 283.7);

Tailwind

colors: {
  custom: {
    50: '#9182d0',
    500: '#5c51bb',
    950: '#000000',
  },
}

SCSS

$custom: #5c51bb;
$custom-light: #9182d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5c51bb",
  "rgb": {
    "r": 92,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 246.226,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50327,
    "c": 0.16095,
    "h": 283.7
  },
  "luminance": 0.11748
}

Semantic roles & 50–950 ramp

primary

#5C51BB

secondary

#C6CB9D

accent

#D454C6

background

#F9F8FC

surface

#F2EFF9

border

#CCCAD2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5C51BB

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

Preview Lab → · Contrast checker → · Palette generator →