#5556CB#5556CB

#5556CB is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.9% C 0.177 H 277.9°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#5556CB
RGB	rgb(85, 86, 203)
HSL	hsl(239, 53%, 56%)
HSV	hsv(239, 58%, 80%)
CMYK	cmyk(58.1%, 57.6%, 0%, 20.4%)
CIE-LAB	lab(42.61, 33.71, -61.11)
CIE-LCH	lch(42.61, 69.79, 298.88°)
OKLab	oklab(51.88% 0.0243 -0.1754)
OKLCH	oklch(51.88% 0.177 277.9)
XYZ	xyz(17.8502, 12.8974, 58.0372)
Luminance	0.1290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5556CB #CBCA55

analogous

#5591CB #5556CB #8F55CB

triadic

#5556CB #CB5556 #56CB55

tetradic

#5556CB #CB5591 #CBCA55 #55CB8F

square

#5556CB #CB5591 #CBCA55 #55CB8F

split-complementary

#5556CB #CB8F55 #91CB55

monochromatic

#27287F #3536AE #5556CB #8485D9 #B3B3E8

Accessibility & contrast

On white

5.87

#5556CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#5556CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5556CB

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5556CB	#FFFFFF	#000000	##FFFFFF
##5556CB	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5556cb;
/* rgb */ color: rgb(85, 86, 203);
/* oklch */ color: oklch(51.9% 0.177 277.9);

Tailwind

colors: {
  custom: {
    50: '#8f85dc',
    500: '#5556cb',
    950: '#000000',
  },
}

SCSS

$custom: #5556cb;
$custom-light: #8f85dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5556cb",
  "rgb": {
    "r": 85,
    "g": 86,
    "b": 203
  },
  "hsl": {
    "h": 239.492,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.51881,
    "c": 0.17709,
    "h": 277.9
  },
  "luminance": 0.12899
}

Semantic roles & 50–950 ramp

primary

#5556CB

secondary

#D6D6A6

accent

#DB4BDD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5556CB

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

Preview Lab → · Contrast checker → · Palette generator →