#5183E3#5183E3

#5183E3 is a light, vivid blue. Relative luminance 0.235; OKLCH L 62.2% C 0.155 H 262.1°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#5183E3
RGB	rgb(81, 131, 227)
HSL	hsl(219, 72%, 60%)
HSV	hsv(219, 64%, 89%)
CMYK	cmyk(64.3%, 42.3%, 0%, 11%)
CIE-LAB	lab(55.61, 13.27, -53.84)
CIE-LCH	lch(55.61, 55.45, 283.85°)
OKLab	oklab(62.16% -0.0212 -0.1536)
OKLCH	oklch(62.16% 0.155 262.1)
XYZ	xyz(25.3699, 23.5256, 75.8621)
Luminance	0.2353 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183E3 #E3B151

analogous

#51CCE3 #5183E3 #6851E3

triadic

#5183E3 #E35183 #83E351

tetradic

#5183E3 #E351CC #E3B151 #51E368

square

#5183E3 #E351CC #E3B151 #51E368

split-complementary

#5183E3 #E36851 #CCE351

monochromatic

#1A48A0 #225FD5 #5183E3 #86A9EB #BACEF4

Accessibility & contrast

On white

3.68

#5183E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#5183E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183E3

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183E3	#FFFFFF	#000000	##000000
##5183E3	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#568CE7

Deuteranopia (green-blind)

#3F7FE1

Tritanopia (blue-blind)

#0099A8

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5183e3;
/* rgb */ color: rgb(81, 131, 227);
/* oklch */ color: oklch(62.2% 0.155 262.1);

Tailwind

colors: {
  custom: {
    50: '#8fa6ec',
    500: '#5183e3',
    950: '#000000',
  },
}

SCSS

$custom: #5183e3;
$custom-light: #8fa6ec;
$custom-dark: #000000;

JSON

{
  "hex": "#5183e3",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 227
  },
  "hsl": {
    "h": 219.452,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.62161,
    "c": 0.15504,
    "h": 262.1
  },
  "luminance": 0.23528
}

Semantic roles & 50–950 ramp

primary

#5183E3

secondary

#E4D1AC

accent

#9111D4

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5183E3

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

Preview Lab → · Contrast checker → · Palette generator →