#5571AB#5571AB

#5571AB is a mid, moderate blue. Relative luminance 0.167; OKLCH L 55.3% C 0.097 H 263.9°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#5571AB
RGB	rgb(85, 113, 171)
HSL	hsl(220, 34%, 50%)
HSV	hsv(220, 50%, 67%)
CMYK	cmyk(50.3%, 33.9%, 0%, 32.9%)
CIE-LAB	lab(47.86, 6.47, -34.15)
CIE-LCH	lch(47.86, 34.75, 280.74°)
OKLab	oklab(55.25% -0.0103 -0.0961)
OKLCH	oklch(55.25% 0.097 263.9)
XYZ	xyz(16.9997, 16.6807, 40.8441)
Luminance	0.1668 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571AB #AB8F55

analogous

#559CAB #5571AB #6455AB

triadic

#5571AB #AB5571 #71AB55

tetradic

#5571AB #AB559C #AB8F55 #55AB64

square

#5571AB #AB559C #AB8F55 #55AB64

split-complementary

#5571AB #AB6455 #9CAB55

monochromatic

#2C3B59 #405682 #5571AB #7E93BF #A7B5D3

Accessibility & contrast

On white

4.84

#5571AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#5571AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5571AB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571AB	#FFFFFF	#000000	##FFFFFF
##5571AB	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B76AD

Deuteranopia (green-blind)

#516EAA

Tritanopia (blue-blind)

#2F7D86

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #5571ab;
/* rgb */ color: rgb(85, 113, 171);
/* oklch */ color: oklch(55.3% 0.097 263.9);

Tailwind

colors: {
  custom: {
    50: '#8a99c4',
    500: '#5571ab',
    950: '#000000',
  },
}

SCSS

$custom: #5571ab;
$custom-light: #8a99c4;
$custom-dark: #000000;

JSON

{
  "hex": "#5571ab",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 171
  },
  "hsl": {
    "h": 220.465,
    "s": 33.858,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55254,
    "c": 0.09666,
    "h": 263.9
  },
  "luminance": 0.16682
}

Semantic roles & 50–950 ramp

primary

#5571AB

secondary

#C1B59B

accent

#A75ECA

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D12

muted

#7D7E81

Preview Lab

Preview with #5571AB

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

Preview Lab → · Contrast checker → · Palette generator →