#5B51DC#5B51DC

#5B51DC is a mid, highly saturated blue. Relative luminance 0.133; OKLCH L 52.8% C 0.204 H 280.0°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#5B51DC
RGB	rgb(91, 81, 220)
HSL	hsl(244, 67%, 59%)
HSV	hsv(244, 63%, 86%)
CMYK	cmyk(58.6%, 63.2%, 0%, 13.7%)
CIE-LAB	lab(43.17, 43.18, -69.93)
CIE-LCH	lch(43.17, 82.18, 301.69°)
OKLab	oklab(52.81% 0.0355 -0.2012)
OKLCH	oklch(52.81% 0.204 280)
XYZ	xyz(20.1710, 13.2749, 69.1957)
Luminance	0.1328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B51DC #D2DC51

analogous

#518DDC #5B51DC #A151DC

triadic

#5B51DC #DC5B51 #51DC5B

tetradic

#5B51DC #DC518D #D2DC51 #51DCA1

square

#5B51DC #DC518D #D2DC51 #51DCA1

split-complementary

#5B51DC #DCA151 #8DDC51

monochromatic

#261E95 #3428C8 #5B51DC #8B84E6 #BBB7F0

Accessibility & contrast

On white

5.75

#5B51DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#5B51DC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B51DC

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B51DC	#FFFFFF	#000000	##FFFFFF
##5B51DC	1.00	5.75	3.66	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE0

Deuteranopia (green-blind)

#0061D9

Tritanopia (blue-blind)

#00748F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5b51dc;
/* rgb */ color: rgb(91, 81, 220);
/* oklch */ color: oklch(52.8% 0.204 280.0);

Tailwind

colors: {
  custom: {
    50: '#9682e8',
    500: '#5b51dc',
    950: '#000000',
  },
}

SCSS

$custom: #5b51dc;
$custom-light: #9682e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b51dc",
  "rgb": {
    "r": 91,
    "g": 81,
    "b": 220
  },
  "hsl": {
    "h": 244.317,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.52812,
    "c": 0.20428,
    "h": 280
  },
  "luminance": 0.13276
}

Semantic roles & 50–950 ramp

primary

#5B51DC

secondary

#DCE0A9

accent

#E93EDD

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0F0A16

muted

#7E7C84

Preview Lab

Preview with #5B51DC

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

Preview Lab → · Contrast checker → · Palette generator →