#5571CB#5571CB

#5571CB is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.1% C 0.142 H 268.6°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#5571CB
RGB	rgb(85, 113, 203)
HSL	hsl(226, 53%, 56%)
HSV	hsv(226, 58%, 80%)
CMYK	cmyk(58.1%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(49.56, 16.92, -49.92)
CIE-LCH	lch(49.56, 52.71, 288.72°)
OKLab	oklab(57.12% -0.0034 -0.1422)
OKLCH	oklch(57.12% 0.142 268.6)
XYZ	xyz(20.4273, 18.0517, 58.8962)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571CB #CBAF55

analogous

#55ACCB #5571CB #7455CB

triadic

#5571CB #CB5571 #71CB55

tetradic

#5571CB #CB55AC #CBAF55 #55CB74

square

#5571CB #CB55AC #CBAF55 #55CB74

split-complementary

#5571CB #CB7455 #ACCB55

monochromatic

#273C7F #3552AE #5571CB #8498D9 #B3BFE8

Accessibility & contrast

On white

4.55

#5571CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#5571CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5571CB

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571CB	#FFFFFF	#000000	##000000
##5571CB	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#487BCE

Deuteranopia (green-blind)

#3871C9

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5571cb;
/* rgb */ color: rgb(85, 113, 203);
/* oklch */ color: oklch(57.1% 0.142 268.6);

Tailwind

colors: {
  custom: {
    50: '#8e99db',
    500: '#5571cb',
    950: '#000000',
  },
}

SCSS

$custom: #5571cb;
$custom-light: #8e99db;
$custom-dark: #000000;

JSON

{
  "hex": "#5571cb",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 225.763,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.57123,
    "c": 0.14228,
    "h": 268.6
  },
  "luminance": 0.18053
}

Semantic roles & 50–950 ramp

primary

#5571CB

secondary

#D6CBA6

accent

#BA4BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5571CB

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

Preview Lab → · Contrast checker → · Palette generator →