#5183EC#5183EC

#5183EC is a light, vivid blue. Relative luminance 0.240; OKLCH L 62.7% C 0.167 H 263.2°. Best body text is #000000 at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#5183EC
RGB	rgb(81, 131, 236)
HSL	hsl(221, 80%, 62%)
HSV	hsv(221, 66%, 93%)
CMYK	cmyk(65.7%, 44.5%, 0%, 7.5%)
CIE-LAB	lab(56.12, 16.36, -58.04)
CIE-LCH	lch(56.12, 60.30, 285.74°)
OKLab	oklab(62.72% -0.0196 -0.1659)
OKLCH	oklch(62.72% 0.167 263.2)
XYZ	xyz(26.6446, 24.0355, 82.5758)
Luminance	0.2404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183EC #ECBA51

analogous

#51D1EC #5183EC #6D51EC

triadic

#5183EC #EC5183 #83EC51

tetradic

#5183EC #EC51D1 #ECBA51 #51EC6D

square

#5183EC #EC51D1 #ECBA51 #51EC6D

split-complementary

#5183EC #EC6D51 #D1EC51

monochromatic

#1346AF #1A5CE6 #5183EC #88AAF2 #BFD2F8

Accessibility & contrast

On white

3.62

#5183EC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.81

#5183EC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183EC

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183EC	#FFFFFF	#000000	##000000
##5183EC	1.00	3.62	5.81	5.81
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.81	21.00	1.00	1.00
##000000	5.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#508EF0

Deuteranopia (green-blind)

#3480EA

Tritanopia (blue-blind)

#009BAC

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5183ec;
/* rgb */ color: rgb(81, 131, 236);
/* oklch */ color: oklch(62.7% 0.167 263.2);

Tailwind

colors: {
  custom: {
    50: '#91a6f3',
    500: '#5183ec',
    950: '#000000',
  },
}

SCSS

$custom: #5183ec;
$custom-light: #91a6f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5183ec",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 236
  },
  "hsl": {
    "h": 220.645,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.62723,
    "c": 0.16707,
    "h": 263.2
  },
  "luminance": 0.24038
}

Semantic roles & 50–950 ramp

primary

#5183EC

secondary

#E9D6B0

accent

#9809DD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5183EC

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

Preview Lab → · Contrast checker → · Palette generator →