#5583E4#5583E4

#5583E4 is a light, vivid blue. Relative luminance 0.238; OKLCH L 62.4% C 0.155 H 263.5°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#5583E4
RGB	rgb(85, 131, 228)
HSL	hsl(221, 73%, 61%)
HSV	hsv(221, 63%, 89%)
CMYK	cmyk(62.7%, 42.5%, 0%, 10.6%)
CIE-LAB	lab(55.85, 14.30, -54.00)
CIE-LCH	lch(55.85, 55.87, 284.83°)
OKLab	oklab(62.41% -0.0176 -0.154)
OKLCH	oklch(62.41% 0.155 263.5)
XYZ	xyz(25.8613, 23.7630, 76.6076)
Luminance	0.2377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5583E4 #E4B655

analogous

#55CBE4 #5583E4 #6F55E4

triadic

#5583E4 #E45583 #83E455

tetradic

#5583E4 #E455CB #E4B655 #55E46F

square

#5583E4 #E455CB #E4B655 #55E46F

split-complementary

#5583E4 #E46F55 #CBE455

monochromatic

#1A47A4 #235DD9 #5583E4 #8AAAEC #BFD0F5

Accessibility & contrast

On white

3.65

#5583E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#5583E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5583E4

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5583E4	#FFFFFF	#000000	##000000
##5583E4	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)

#568DE8

Deuteranopia (green-blind)

#4080E2

Tritanopia (blue-blind)

#0099A8

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5583e4;
/* rgb */ color: rgb(85, 131, 228);
/* oklch */ color: oklch(62.4% 0.155 263.5);

Tailwind

colors: {
  custom: {
    50: '#91a6ed',
    500: '#5583e4',
    950: '#000000',
  },
}

SCSS

$custom: #5583e4;
$custom-light: #91a6ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5583e4",
  "rgb": {
    "r": 85,
    "g": 131,
    "b": 228
  },
  "hsl": {
    "h": 220.699,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.62414,
    "c": 0.15501,
    "h": 263.5
  },
  "luminance": 0.23765
}

Semantic roles & 50–950 ramp

primary

#5583E4

secondary

#E5D4B0

accent

#9611D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5583E4

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

Preview Lab → · Contrast checker → · Palette generator →