#5581DA#5581DA

#5581DA is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.4% C 0.144 H 263.0°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#5581DA
RGB	rgb(85, 129, 218)
HSL	hsl(220, 64%, 59%)
HSV	hsv(220, 61%, 85%)
CMYK	cmyk(61%, 40.8%, 0%, 14.5%)
CIE-LAB	lab(54.75, 12.14, -50.15)
CIE-LCH	lch(54.75, 51.59, 283.61°)
OKLab	oklab(61.39% -0.0175 -0.1427)
OKLCH	oklch(61.39% 0.144 263)
XYZ	xyz(24.2471, 22.6916, 69.4182)
Luminance	0.2269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5581DA #DAAE55

analogous

#55C4DA #5581DA #6C55DA

triadic

#5581DA #DA5581 #81DA55

tetradic

#5581DA #DA55C4 #DAAE55 #55DA6C

square

#5581DA #DA55C4 #DAAE55 #55DA6C

split-complementary

#5581DA #DA6C55 #C4DA55

monochromatic

#204794 #2B5FC7 #5581DA #87A6E5 #BACCF0

Accessibility & contrast

On white

3.79

#5581DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#5581DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5581DA

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5581DA	#FFFFFF	#000000	##000000
##5581DA	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A8ADD

Deuteranopia (green-blind)

#477DD8

Tritanopia (blue-blind)

#0095A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #5581da;
/* rgb */ color: rgb(85, 129, 218);
/* oklch */ color: oklch(61.4% 0.144 263.0);

Tailwind

colors: {
  custom: {
    50: '#90a5e6',
    500: '#5581da',
    950: '#000000',
  },
}

SCSS

$custom: #5581da;
$custom-light: #90a5e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5581da",
  "rgb": {
    "r": 85,
    "g": 129,
    "b": 218
  },
  "hsl": {
    "h": 220.15,
    "s": 64.251,
    "l": 59.412
  },
  "oklch": {
    "l": 0.6139,
    "c": 0.14377,
    "h": 263
  },
  "luminance": 0.22694
}

Semantic roles & 50–950 ramp

primary

#5581DA

secondary

#DFCEAB

accent

#B041E7

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5581DA

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

Preview Lab → · Contrast checker → · Palette generator →