#5583DD#5583DD

#5583DD is a mid, vivid blue. Relative luminance 0.234; OKLCH L 62.0% C 0.146 H 262.5°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#5583DD
RGB	rgb(85, 131, 221)
HSL	hsl(220, 67%, 60%)
HSV	hsv(220, 62%, 87%)
CMYK	cmyk(61.5%, 40.7%, 0%, 13.3%)
CIE-LAB	lab(55.46, 11.94, -50.70)
CIE-LCH	lch(55.46, 52.09, 283.25°)
OKLab	oklab(61.99% -0.019 -0.1443)
OKLCH	oklch(61.99% 0.146 262.5)
XYZ	xyz(24.9092, 23.3821, 71.5931)
Luminance	0.2338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5583DD #DDAF55

analogous

#55C7DD #5583DD #6B55DD

triadic

#5583DD #DD5583 #83DD55

tetradic

#5583DD #DD55C7 #DDAF55 #55DD6B

square

#5583DD #DD55C7 #DDAF55 #55DD6B

split-complementary

#5583DD #DD6B55 #C7DD55

monochromatic

#1F4899 #2960CC #5583DD #88A8E7 #BBCDF1

Accessibility & contrast

On white

3.70

#5583DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#5583DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5583DD

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5583DD	#FFFFFF	#000000	##000000
##5583DD	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B8CE1

Deuteranopia (green-blind)

#477FDB

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5583dd;
/* rgb */ color: rgb(85, 131, 221);
/* oklch */ color: oklch(62.0% 0.146 262.5);

Tailwind

colors: {
  custom: {
    50: '#90a6e8',
    500: '#5583dd',
    950: '#000000',
  },
}

SCSS

$custom: #5583dd;
$custom-light: #90a6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5583dd",
  "rgb": {
    "r": 85,
    "g": 131,
    "b": 221
  },
  "hsl": {
    "h": 219.706,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.61991,
    "c": 0.14554,
    "h": 262.5
  },
  "luminance": 0.23384
}

Semantic roles & 50–950 ramp

primary

#5583DD

secondary

#E1CFAD

accent

#B03EEA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5583DD

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

Preview Lab → · Contrast checker → · Palette generator →