#5571AA#5571AA

#5571AA is a mid, moderate blue. Relative luminance 0.166; OKLCH L 55.2% C 0.095 H 263.6°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#5571AA
RGB	rgb(85, 113, 170)
HSL	hsl(220, 33%, 50%)
HSV	hsv(220, 50%, 67%)
CMYK	cmyk(50%, 33.5%, 0%, 33.3%)
CIE-LAB	lab(47.81, 6.16, -33.64)
CIE-LCH	lch(47.81, 34.20, 280.37°)
OKLab	oklab(55.2% -0.0106 -0.0946)
OKLCH	oklch(55.2% 0.095 263.6)
XYZ	xyz(16.9047, 16.6427, 40.3440)
Luminance	0.1664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571AA #AA8E55

analogous

#559CAA #5571AA #6355AA

triadic

#5571AA #AA5571 #71AA55

tetradic

#5571AA #AA559C #AA8E55 #55AA63

square

#5571AA #AA559C #AA8E55 #55AA63

split-complementary

#5571AA #AA6355 #9CAA55

monochromatic

#2C3B58 #415681 #5571AA #7E93BE #A7B5D3

Accessibility & contrast

On white

4.85

#5571AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#5571AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5571AA

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571AA	#FFFFFF	#000000	##FFFFFF
##5571AA	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B76AC

Deuteranopia (green-blind)

#526EA9

Tritanopia (blue-blind)

#307D86

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5571aa;
/* rgb */ color: rgb(85, 113, 170);
/* oklch */ color: oklch(55.2% 0.095 263.6);

Tailwind

colors: {
  custom: {
    50: '#8a99c3',
    500: '#5571aa',
    950: '#000000',
  },
}

SCSS

$custom: #5571aa;
$custom-light: #8a99c3;
$custom-dark: #000000;

JSON

{
  "hex": "#5571aa",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 170
  },
  "hsl": {
    "h": 220.235,
    "s": 33.333,
    "l": 50
  },
  "oklch": {
    "l": 0.552,
    "c": 0.09523,
    "h": 263.6
  },
  "luminance": 0.16644
}

Semantic roles & 50–950 ramp

primary

#5571AA

secondary

#C0B49A

accent

#A65EC9

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D12

muted

#7D7E81

Preview Lab

Preview with #5571AA

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

Preview Lab → · Contrast checker → · Palette generator →