#5580EF#5580EF

#5580EF is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.5% C 0.173 H 265.7°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#5580EF
RGB	rgb(85, 128, 239)
HSL	hsl(223, 83%, 64%)
HSV	hsv(223, 64%, 94%)
CMYK	cmyk(64.4%, 46.4%, 0%, 6.3%)
CIE-LAB	lab(55.68, 19.86, -60.40)
CIE-LCH	lch(55.68, 63.58, 288.20°)
OKLab	oklab(62.49% -0.013 -0.1728)
OKLCH	oklch(62.49% 0.173 265.7)
XYZ	xyz(27.0401, 23.5991, 84.7747)
Luminance	0.2360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5580EF #EFC455

analogous

#55CDEF #5580EF #7755EF

triadic

#5580EF #EF5580 #80EF55

tetradic

#5580EF #EF55CD #EFC455 #55EF77

square

#5580EF #EF55CD #EFC455 #55EF77

split-complementary

#5580EF #EF7755 #CDEF55

monochromatic

#1140B8 #1D56EA #5580EF #8DAAF4 #C5D4FA

Accessibility & contrast

On white

3.67

#5580EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#5580EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5580EF

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5580EF	#FFFFFF	#000000	##000000
##5580EF	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#488DF3

Deuteranopia (green-blind)

#297FED

Tritanopia (blue-blind)

#009AAC

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5580ef;
/* rgb */ color: rgb(85, 128, 239);
/* oklch */ color: oklch(62.5% 0.173 265.7);

Tailwind

colors: {
  custom: {
    50: '#93a4f5',
    500: '#5580ef',
    950: '#000000',
  },
}

SCSS

$custom: #5580ef;
$custom-light: #93a4f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5580ef",
  "rgb": {
    "r": 85,
    "g": 128,
    "b": 239
  },
  "hsl": {
    "h": 223.247,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.62493,
    "c": 0.17332,
    "h": 265.7
  },
  "luminance": 0.23602
}

Semantic roles & 50–950 ramp

primary

#5580EF

secondary

#EBDCB5

accent

#A306DF

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5580EF

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

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