#5571EF#5571EF

#5571EF is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.5% C 0.191 H 270.2°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#5571EF
RGB	rgb(85, 113, 239)
HSL	hsl(229, 83%, 64%)
HSV	hsv(229, 64%, 94%)
CMYK	cmyk(64.4%, 52.7%, 0%, 6.3%)
CIE-LAB	lab(51.80, 29.06, -66.65)
CIE-LCH	lch(51.80, 72.71, 293.56°)
OKLab	oklab(59.55% 0.0006 -0.1914)
OKLCH	oklch(59.55% 0.191 270.2)
XYZ	xyz(25.2262, 19.9713, 84.1701)
Luminance	0.1997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571EF #EFD355

analogous

#55BEEF #5571EF #8655EF

triadic

#5571EF #EF5571 #71EF55

tetradic

#5571EF #EF55BE #EFD355 #55EF86

square

#5571EF #EF55BE #EFD355 #55EF86

split-complementary

#5571EF #EF8655 #BEEF55

monochromatic

#1130B8 #1D42EA #5571EF #8DA0F4 #C5CEFA

Accessibility & contrast

On white

4.20

#5571EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#5571EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5571EF

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571EF	#FFFFFF	#000000	##000000
##5571EF	1.00	4.20	4.99	4.99
#FFFFFF	4.20	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B83F3

Deuteranopia (green-blind)

#0075EC

Tritanopia (blue-blind)

#008FA5

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5571ef;
/* rgb */ color: rgb(85, 113, 239);
/* oklch */ color: oklch(59.5% 0.191 270.2);

Tailwind

colors: {
  custom: {
    50: '#9499f5',
    500: '#5571ef',
    950: '#000000',
  },
}

SCSS

$custom: #5571ef;
$custom-light: #9499f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5571ef",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 239
  },
  "hsl": {
    "h": 229.091,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.59548,
    "c": 0.19142,
    "h": 270.2
  },
  "luminance": 0.19974
}

Semantic roles & 50–950 ramp

primary

#5571EF

secondary

#EBE1B5

accent

#B806DF

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5571EF

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

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