#5B51E7#5B51E7

#5B51E7 is a mid, highly saturated blue. Relative luminance 0.139; OKLCH L 53.7% C 0.218 H 279.1°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#5B51E7
RGB	rgb(91, 81, 231)
HSL	hsl(244, 76%, 61%)
HSV	hsv(244, 65%, 91%)
CMYK	cmyk(60.6%, 64.9%, 0%, 9.4%)
CIE-LAB	lab(44.06, 46.62, -74.74)
CIE-LCH	lch(44.06, 88.08, 301.96°)
OKLab	oklab(53.73% 0.0345 -0.2153)
OKLCH	oklch(53.73% 0.218 279.1)
XYZ	xyz(21.6760, 13.8769, 77.1221)
Luminance	0.1388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B51E7 #DDE751

analogous

#5192E7 #5B51E7 #A651E7

triadic

#5B51E7 #E75B51 #51E75B

tetradic

#5B51E7 #E75192 #DDE751 #51E7A6

square

#5B51E7 #E75192 #DDE751 #51E7A6

split-complementary

#5B51E7 #E7A651 #92E751

monochromatic

#2117A7 #2B1EDC #5B51E7 #8E87EE #C0BDF6

Accessibility & contrast

On white

5.56

#5B51E7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#5B51E7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B51E7

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B51E7	#FFFFFF	#000000	##FFFFFF
##5B51E7	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EEC

Deuteranopia (green-blind)

#0062E4

Tritanopia (blue-blind)

#007895

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #5b51e7;
/* rgb */ color: rgb(91, 81, 231);
/* oklch */ color: oklch(53.7% 0.218 279.1);

Tailwind

colors: {
  custom: {
    50: '#9883f0',
    500: '#5b51e7',
    950: '#000000',
  },
}

SCSS

$custom: #5b51e7;
$custom-light: #9883f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b51e7",
  "rgb": {
    "r": 91,
    "g": 81,
    "b": 231
  },
  "hsl": {
    "h": 244,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.53726,
    "c": 0.21804,
    "h": 279.1
  },
  "luminance": 0.13879
}

Semantic roles & 50–950 ramp

primary

#5B51E7

secondary

#E2E6AE

accent

#D80ECA

background

#FAF8FE

surface

#F3EFFD

border

#CDCAD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #5B51E7

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

Preview Lab → · Contrast checker → · Palette generator →