#5571BC#5571BC

#5571BC is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.2% C 0.121 H 267.0°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#5571BC
RGB	rgb(85, 113, 188)
HSL	hsl(224, 43%, 54%)
HSV	hsv(224, 55%, 74%)
CMYK	cmyk(54.8%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(48.72, 11.96, -42.64)
CIE-LCH	lch(48.72, 44.28, 285.66°)
OKLab	oklab(56.21% -0.0062 -0.1209)
OKLCH	oklch(56.21% 0.121 267)
XYZ	xyz(18.7255, 17.3710, 49.9334)
Luminance	0.1737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571BC #BCA055

analogous

#55A4BC #5571BC #6C55BC

triadic

#5571BC #BC5571 #71BC55

tetradic

#5571BC #BC55A4 #BCA055 #55BC6C

square

#5571BC #BC55A4 #BCA055 #55BC6C

split-complementary

#5571BC #BC6C55 #A4BC55

monochromatic

#2B3C6C #3C5598 #5571BC #8196CD #ADBADF

Accessibility & contrast

On white

4.69

#5571BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#5571BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5571BC

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571BC	#FFFFFF	#000000	##FFFFFF
##5571BC	1.00	4.69	4.47	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5279BF

Deuteranopia (green-blind)

#466FBA

Tritanopia (blue-blind)

#1C818D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5571bc;
/* rgb */ color: rgb(85, 113, 188);
/* oklch */ color: oklch(56.2% 0.121 267.0);

Tailwind

colors: {
  custom: {
    50: '#8c99d0',
    500: '#5571bc',
    950: '#000000',
  },
}

SCSS

$custom: #5571bc;
$custom-light: #8c99d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5571bc",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 223.689,
    "s": 43.46,
    "l": 53.529
  },
  "oklch": {
    "l": 0.5621,
    "c": 0.12104,
    "h": 267
  },
  "luminance": 0.17372
}

Semantic roles & 50–950 ramp

primary

#5571BC

secondary

#CCC0A0

accent

#B155D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0D0D14

muted

#7D7E82

Preview Lab

Preview with #5571BC

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

Preview Lab → · Contrast checker → · Palette generator →