#5571D9#5571D9

#5571D9 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.0% C 0.162 H 269.5°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#5571D9
RGB	rgb(85, 113, 217)
HSL	hsl(227, 63%, 59%)
HSV	hsv(227, 61%, 85%)
CMYK	cmyk(60.8%, 47.9%, 0%, 14.9%)
CIE-LAB	lab(50.39, 21.62, -56.55)
CIE-LCH	lch(50.39, 60.54, 290.92°)
OKLab	oklab(58.03% -0.0014 -0.1617)
OKLCH	oklch(58.03% 0.162 269.5)
XYZ	xyz(22.1716, 18.7494, 68.0828)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571D9 #D9BD55

analogous

#55B3D9 #5571D9 #7B55D9

triadic

#5571D9 #D95571 #71D955

tetradic

#5571D9 #D955B3 #D9BD55 #55D97B

square

#5571D9 #D955B3 #D9BD55 #55D97B

split-complementary

#5571D9 #D97B55 #B3D955

monochromatic

#213993 #2C4CC5 #5571D9 #879BE4 #B9C5EF

Accessibility & contrast

On white

4.42

#5571D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#5571D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5571D9

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571D9	#FFFFFF	#000000	##000000
##5571D9	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7EDD

Deuteranopia (green-blind)

#2472D7

Tritanopia (blue-blind)

#00899B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5571d9;
/* rgb */ color: rgb(85, 113, 217);
/* oklch */ color: oklch(58.0% 0.162 269.5);

Tailwind

colors: {
  custom: {
    50: '#9099e5',
    500: '#5571d9',
    950: '#000000',
  },
}

SCSS

$custom: #5571d9;
$custom-light: #9099e5;
$custom-dark: #000000;

JSON

{
  "hex": "#5571d9",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 217
  },
  "hsl": {
    "h": 227.273,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.58028,
    "c": 0.16173,
    "h": 269.5
  },
  "luminance": 0.18751
}

Semantic roles & 50–950 ramp

primary

#5571D9

secondary

#DFD4AB

accent

#C341E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5571D9

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

Preview Lab → · Contrast checker → · Palette generator →