#5183E7#5183E7

#5183E7 is a light, vivid blue. Relative luminance 0.238; OKLCH L 62.4% C 0.160 H 262.7°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#5183E7
RGB	rgb(81, 131, 231)
HSL	hsl(220, 76%, 61%)
HSV	hsv(220, 65%, 91%)
CMYK	cmyk(64.9%, 43.3%, 0%, 9.4%)
CIE-LAB	lab(55.84, 14.64, -55.71)
CIE-LCH	lch(55.84, 57.60, 284.72°)
OKLab	oklab(62.41% -0.0205 -0.1591)
OKLCH	oklch(62.41% 0.16 262.7)
XYZ	xyz(25.9284, 23.7490, 78.8034)
Luminance	0.2375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183E7 #E7B551

analogous

#51CEE7 #5183E7 #6A51E7

triadic

#5183E7 #E75183 #83E751

tetradic

#5183E7 #E751CE #E7B551 #51E76A

square

#5183E7 #E751CE #E7B551 #51E76A

split-complementary

#5183E7 #E76A51 #CEE751

monochromatic

#1747A7 #1E5EDC #5183E7 #87A9EE #BDD0F6

Accessibility & contrast

On white

3.65

#5183E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#5183E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183E7

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183E7	#FFFFFF	#000000	##000000
##5183E7	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#548DEB

Deuteranopia (green-blind)

#3B7FE5

Tritanopia (blue-blind)

#009AAA

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5183e7;
/* rgb */ color: rgb(81, 131, 231);
/* oklch */ color: oklch(62.4% 0.160 262.7);

Tailwind

colors: {
  custom: {
    50: '#90a6ef',
    500: '#5183e7',
    950: '#000000',
  },
}

SCSS

$custom: #5183e7;
$custom-light: #90a6ef;
$custom-dark: #000000;

JSON

{
  "hex": "#5183e7",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 231
  },
  "hsl": {
    "h": 220,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.62408,
    "c": 0.1604,
    "h": 262.7
  },
  "luminance": 0.23751
}

Semantic roles & 50–950 ramp

primary

#5183E7

secondary

#E6D3AE

accent

#940ED8

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5183E7

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

Preview Lab → · Contrast checker → · Palette generator →