#5183E8#5183E8

#5183E8 is a light, vivid blue. Relative luminance 0.238; OKLCH L 62.5% C 0.162 H 262.8°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#5183E8
RGB	rgb(81, 131, 232)
HSL	hsl(220, 77%, 61%)
HSV	hsv(220, 65%, 91%)
CMYK	cmyk(65.1%, 43.5%, 0%, 9%)
CIE-LAB	lab(55.89, 14.98, -56.18)
CIE-LCH	lch(55.89, 58.14, 284.93°)
OKLab	oklab(62.47% -0.0203 -0.1604)
OKLCH	oklch(62.47% 0.162 262.8)
XYZ	xyz(26.0700, 23.8056, 79.5493)
Luminance	0.2381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183E8 #E8B651

analogous

#51CFE8 #5183E8 #6B51E8

triadic

#5183E8 #E85183 #83E851

tetradic

#5183E8 #E851CF #E8B651 #51E86B

square

#5183E8 #E851CF #E8B651 #51E86B

split-complementary

#5183E8 #E86B51 #CFE851

monochromatic

#1647A8 #1D5DDE #5183E8 #87AAEF #BDD0F6

Accessibility & contrast

On white

3.64

#5183E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#5183E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183E8

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183E8	#FFFFFF	#000000	##000000
##5183E8	1.00	3.64	5.76	5.76
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#538DEC

Deuteranopia (green-blind)

#397FE6

Tritanopia (blue-blind)

#009AAA

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5183e8;
/* rgb */ color: rgb(81, 131, 232);
/* oklch */ color: oklch(62.5% 0.162 262.8);

Tailwind

colors: {
  custom: {
    50: '#90a6f0',
    500: '#5183e8',
    950: '#000000',
  },
}

SCSS

$custom: #5183e8;
$custom-light: #90a6f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5183e8",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 232
  },
  "hsl": {
    "h": 220.132,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.62471,
    "c": 0.16173,
    "h": 262.8
  },
  "luminance": 0.23808
}

Semantic roles & 50–950 ramp

primary

#5183E8

secondary

#E7D4AE

accent

#950DD9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5183E8

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

Preview Lab → · Contrast checker → · Palette generator →