#5183E4#5183E4

#5183E4 is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.2% C 0.156 H 262.3°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#5183E4
RGB	rgb(81, 131, 228)
HSL	hsl(220, 73%, 61%)
HSV	hsv(220, 64%, 89%)
CMYK	cmyk(64.5%, 42.5%, 0%, 10.6%)
CIE-LAB	lab(55.67, 13.61, -54.31)
CIE-LCH	lch(55.67, 55.99, 284.07°)
OKLab	oklab(62.22% -0.021 -0.155)
OKLCH	oklch(62.22% 0.156 262.3)
XYZ	xyz(25.5083, 23.5809, 76.5910)
Luminance	0.2358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183E4 #E4B251

analogous

#51CCE4 #5183E4 #6851E4

triadic

#5183E4 #E45183 #83E451

tetradic

#5183E4 #E451CC #E4B251 #51E468

square

#5183E4 #E451CC #E4B251 #51E468

split-complementary

#5183E4 #E46851 #CCE451

monochromatic

#1947A2 #215FD7 #5183E4 #86A9EC #BBCFF4

Accessibility & contrast

On white

3.67

#5183E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#5183E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183E4

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183E4	#FFFFFF	#000000	##000000
##5183E4	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#568DE8

Deuteranopia (green-blind)

#3E7FE2

Tritanopia (blue-blind)

#0099A8

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5183e4;
/* rgb */ color: rgb(81, 131, 228);
/* oklch */ color: oklch(62.2% 0.156 262.3);

Tailwind

colors: {
  custom: {
    50: '#90a6ed',
    500: '#5183e4',
    950: '#000000',
  },
}

SCSS

$custom: #5183e4;
$custom-light: #90a6ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5183e4",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 228
  },
  "hsl": {
    "h": 219.592,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.62223,
    "c": 0.15638,
    "h": 262.3
  },
  "luminance": 0.23583
}

Semantic roles & 50–950 ramp

primary

#5183E4

secondary

#E4D1AC

accent

#9210D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5183E4

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

Preview Lab → · Contrast checker → · Palette generator →