#5580EE#5580EE

#5580EE is a light, vivid blue. Relative luminance 0.235; OKLCH L 62.4% C 0.172 H 265.6°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#5580EE
RGB	rgb(85, 128, 238)
HSL	hsl(223, 82%, 63%)
HSV	hsv(223, 64%, 93%)
CMYK	cmyk(64.3%, 46.2%, 0%, 6.7%)
CIE-LAB	lab(55.62, 19.52, -59.94)
CIE-LCH	lch(55.62, 63.04, 288.04°)
OKLab	oklab(62.43% -0.0131 -0.1715)
OKLCH	oklch(62.43% 0.172 265.6)
XYZ	xyz(26.8928, 23.5402, 83.9988)
Luminance	0.2354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5580EE #EEC355

analogous

#55CDEE #5580EE #7655EE

triadic

#5580EE #EE5580 #80EE55

tetradic

#5580EE #EE55CD #EEC355 #55EE76

square

#5580EE #EE55CD #EEC355 #55EE76

split-complementary

#5580EE #EE7655 #CDEE55

monochromatic

#1240B6 #1D56E8 #5580EE #8DAAF4 #C4D3F9

Accessibility & contrast

On white

3.68

#5580EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#5580EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5580EE

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5580EE	#FFFFFF	#000000	##000000
##5580EE	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)

#498DF2

Deuteranopia (green-blind)

#2B7FEC

Tritanopia (blue-blind)

#0099AB

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5580ee;
/* rgb */ color: rgb(85, 128, 238);
/* oklch */ color: oklch(62.4% 0.172 265.6);

Tailwind

colors: {
  custom: {
    50: '#93a4f4',
    500: '#5580ee',
    950: '#000000',
  },
}

SCSS

$custom: #5580ee;
$custom-light: #93a4f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5580ee",
  "rgb": {
    "r": 85,
    "g": 128,
    "b": 238
  },
  "hsl": {
    "h": 223.137,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.62428,
    "c": 0.17197,
    "h": 265.6
  },
  "luminance": 0.23543
}

Semantic roles & 50–950 ramp

primary

#5580EE

secondary

#EBDBB4

accent

#A207DE

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5580EE

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

Preview Lab → · Contrast checker → · Palette generator →