#5571BF#5571BF

#5571BF is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.4% C 0.125 H 267.4°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#5571BF
RGB	rgb(85, 113, 191)
HSL	hsl(224, 45%, 54%)
HSV	hsv(224, 55%, 75%)
CMYK	cmyk(55.5%, 40.8%, 0%, 25.1%)
CIE-LAB	lab(48.89, 12.94, -44.11)
CIE-LCH	lch(48.89, 45.97, 286.35°)
OKLab	oklab(56.39% -0.0056 -0.1252)
OKLCH	oklch(56.39% 0.125 267.4)
XYZ	xyz(19.0523, 17.5017, 51.6543)
Luminance	0.1750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571BF #BFA355

analogous

#55A6BF #5571BF #6E55BF

triadic

#5571BF #BF5571 #71BF55

tetradic

#5571BF #BF55A6 #BFA355 #55BF6E

square

#5571BF #BF55A6 #BFA355 #55BF6E

split-complementary

#5571BF #BF6E55 #A6BF55

monochromatic

#2A3C70 #3B549C #5571BF #8196D0 #AEBBE0

Accessibility & contrast

On white

4.67

#5571BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#5571BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5571BF

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571BF	#FFFFFF	#000000	##FFFFFF
##5571BF	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5079C2

Deuteranopia (green-blind)

#4370BD

Tritanopia (blue-blind)

#16828F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5571bf;
/* rgb */ color: rgb(85, 113, 191);
/* oklch */ color: oklch(56.4% 0.125 267.4);

Tailwind

colors: {
  custom: {
    50: '#8c99d3',
    500: '#5571bf',
    950: '#000000',
  },
}

SCSS

$custom: #5571bf;
$custom-light: #8c99d3;
$custom-dark: #000000;

JSON

{
  "hex": "#5571bf",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 191
  },
  "hsl": {
    "h": 224.151,
    "s": 45.299,
    "l": 54.118
  },
  "oklch": {
    "l": 0.56388,
    "c": 0.12532,
    "h": 267.4
  },
  "luminance": 0.17503
}

Semantic roles & 50–950 ramp

primary

#5571BF

secondary

#CEC3A1

accent

#B353D5

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #5571BF

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

Preview Lab → · Contrast checker → · Palette generator →