#5581F8#5581F8

#5581F8 is a light, vivid blue. Relative luminance 0.244; OKLCH L 63.3% C 0.184 H 266.0°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#5581F8
RGB	rgb(85, 129, 248)
HSL	hsl(224, 92%, 65%)
HSV	hsv(224, 66%, 97%)
CMYK	cmyk(65.7%, 48%, 0%, 2.7%)
CIE-LAB	lab(56.49, 22.33, -64.09)
CIE-LCH	lch(56.49, 67.87, 289.21°)
OKLab	oklab(63.29% -0.0127 -0.1837)
OKLCH	oklch(63.29% 0.184 266)
XYZ	xyz(28.5340, 24.4064, 91.9959)
Luminance	0.2441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5581F8 #F8CC55

analogous

#55D2F8 #5581F8 #7B55F8

triadic

#5581F8 #F85581 #81F855

tetradic

#5581F8 #F855D2 #F8CC55 #55F87B

square

#5581F8 #F855D2 #F8CC55 #55F87B

split-complementary

#5581F8 #F87B55 #D2F855

monochromatic

#083DCA #1A55F6 #5581F8 #90ADFA #CBD8FD

Accessibility & contrast

On white

3.57

#5581F8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#5581F8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5581F8

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5581F8	#FFFFFF	#000000	##000000
##5581F8	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#418FFC

Deuteranopia (green-blind)

#1780F6

Tritanopia (blue-blind)

#009DB1

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5581f8;
/* rgb */ color: rgb(85, 129, 248);
/* oklch */ color: oklch(63.3% 0.184 266.0);

Tailwind

colors: {
  custom: {
    50: '#95a5fb',
    500: '#5581f8',
    950: '#000000',
  },
}

SCSS

$custom: #5581f8;
$custom-light: #95a5fb;
$custom-dark: #000000;

JSON

{
  "hex": "#5581f8",
  "rgb": {
    "r": 85,
    "g": 129,
    "b": 248
  },
  "hsl": {
    "h": 223.804,
    "s": 92.09,
    "l": 65.294
  },
  "oklch": {
    "l": 0.63285,
    "c": 0.18411,
    "h": 266
  },
  "luminance": 0.24409
}

Semantic roles & 50–950 ramp

primary

#5581F8

secondary

#F0E1B9

accent

#A800E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #5581F8

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

Preview Lab → · Contrast checker → · Palette generator →