#5583EE#5583EE

#5583EE is a light, vivid blue. Relative luminance 0.243; OKLCH L 63.0% C 0.168 H 264.6°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#5583EE
RGB	rgb(85, 131, 238)
HSL	hsl(222, 82%, 63%)
HSV	hsv(222, 64%, 93%)
CMYK	cmyk(64.3%, 45%, 0%, 6.7%)
CIE-LAB	lab(56.42, 17.70, -58.66)
CIE-LCH	lch(56.42, 61.27, 286.79°)
OKLab	oklab(63.04% -0.016 -0.1677)
OKLCH	oklch(63.04% 0.168 264.6)
XYZ	xyz(27.2899, 24.3344, 84.1312)
Luminance	0.2434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5583EE #EEC055

analogous

#55CFEE #5583EE #7355EE

triadic

#5583EE #EE5583 #83EE55

tetradic

#5583EE #EE55CF #EEC055 #55EE73

square

#5583EE #EE55CF #EEC055 #55EE73

split-complementary

#5583EE #EE7355 #CFEE55

monochromatic

#1244B6 #1D5AE8 #5583EE #8DACF4 #C4D4F9

Accessibility & contrast

On white

3.58

#5583EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#5583EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5583EE

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5583EE	#FFFFFF	#000000	##000000
##5583EE	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F8FF2

Deuteranopia (green-blind)

#3481EC

Tritanopia (blue-blind)

#009CAD

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5583ee;
/* rgb */ color: rgb(85, 131, 238);
/* oklch */ color: oklch(63.0% 0.168 264.6);

Tailwind

colors: {
  custom: {
    50: '#93a6f4',
    500: '#5583ee',
    950: '#000000',
  },
}

SCSS

$custom: #5583ee;
$custom-light: #93a6f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5583ee",
  "rgb": {
    "r": 85,
    "g": 131,
    "b": 238
  },
  "hsl": {
    "h": 221.961,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.63038,
    "c": 0.16844,
    "h": 264.6
  },
  "luminance": 0.24337
}

Semantic roles & 50–950 ramp

primary

#5583EE

secondary

#EBDAB4

accent

#9E07DE

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5583EE

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

Preview Lab → · Contrast checker → · Palette generator →