#5571CC#5571CC

#5571CC is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.2% C 0.144 H 268.7°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#5571CC
RGB	rgb(85, 113, 204)
HSL	hsl(226, 54%, 57%)
HSV	hsv(226, 58%, 80%)
CMYK	cmyk(58.3%, 44.6%, 0%, 20%)
CIE-LAB	lab(49.62, 17.25, -50.40)
CIE-LCH	lch(49.62, 53.27, 288.89°)
OKLab	oklab(57.19% -0.0033 -0.1436)
OKLCH	oklch(57.19% 0.144 268.7)
XYZ	xyz(20.5469, 18.0995, 59.5258)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5571CC #CCB055

analogous

#55ADCC #5571CC #7555CC

triadic

#5571CC #CC5571 #71CC55

tetradic

#5571CC #CC55AD #CCB055 #55CC75

square

#5571CC #CC55AD #CCB055 #55CC75

split-complementary

#5571CC #CC7555 #ADCC55

monochromatic

#263C80 #3551AF #5571CC #8498DA #B3C0E8

Accessibility & contrast

On white

4.55

#5571CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#5571CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5571CC

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5571CC	#FFFFFF	#000000	##000000
##5571CC	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#487CCF

Deuteranopia (green-blind)

#3771CA

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5571cc;
/* rgb */ color: rgb(85, 113, 204);
/* oklch */ color: oklch(57.2% 0.144 268.7);

Tailwind

colors: {
  custom: {
    50: '#8e99dc',
    500: '#5571cc',
    950: '#000000',
  },
}

SCSS

$custom: #5571cc;
$custom-light: #8e99dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5571cc",
  "rgb": {
    "r": 85,
    "g": 113,
    "b": 204
  },
  "hsl": {
    "h": 225.882,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.57186,
    "c": 0.14368,
    "h": 268.7
  },
  "luminance": 0.18101
}

Semantic roles & 50–950 ramp

primary

#5571CC

secondary

#D7CBA6

accent

#BB4BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5571CC

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

Preview Lab → · Contrast checker → · Palette generator →