#5581DB#5581DB

#5581DB is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.5% C 0.145 H 263.1°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#5581DB
RGB	rgb(85, 129, 219)
HSL	hsl(220, 65%, 60%)
HSV	hsv(220, 61%, 86%)
CMYK	cmyk(61.2%, 41.1%, 0%, 14.1%)
CIE-LAB	lab(54.81, 12.48, -50.62)
CIE-LCH	lch(54.81, 52.14, 283.84°)
OKLab	oklab(61.45% -0.0173 -0.1441)
OKLCH	oklch(61.45% 0.145 263.1)
XYZ	xyz(24.3783, 22.7441, 70.1094)
Luminance	0.2275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5581DB #DBAF55

analogous

#55C4DB #5581DB #6C55DB

triadic

#5581DB #DB5581 #81DB55

tetradic

#5581DB #DB55C4 #DBAF55 #55DB6C

square

#5581DB #DB55C4 #DBAF55 #55DB6C

split-complementary

#5581DB #DB6C55 #C4DB55

monochromatic

#204796 #2A5EC8 #5581DB #88A6E6 #BACCF0

Accessibility & contrast

On white

3.78

#5581DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#5581DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5581DB

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5581DB	#FFFFFF	#000000	##000000
##5581DB	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#598ADF

Deuteranopia (green-blind)

#467DD9

Tritanopia (blue-blind)

#0095A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #5581db;
/* rgb */ color: rgb(85, 129, 219);
/* oklch */ color: oklch(61.5% 0.145 263.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#5581db",
  "rgb": {
    "r": 85,
    "g": 129,
    "b": 219
  },
  "hsl": {
    "h": 220.299,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.6145,
    "c": 0.14514,
    "h": 263.1
  },
  "luminance": 0.22746
}

Semantic roles & 50–950 ramp

primary

#5581DB

secondary

#E0CFAC

accent

#B140E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5581DB

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

Preview Lab → · Contrast checker → · Palette generator →