#5556CC#5556CC

#5556CC is a mid, vivid blue. Relative luminance 0.129; OKLCH L 52.0% C 0.178 H 277.8°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#5556CC
RGB	rgb(85, 86, 204)
HSL	hsl(239, 54%, 57%)
HSV	hsv(239, 58%, 80%)
CMYK	cmyk(58.3%, 57.8%, 0%, 20%)
CIE-LAB	lab(42.68, 34.04, -61.57)
CIE-LCH	lch(42.68, 70.35, 298.93°)
OKLab	oklab(51.96% 0.0243 -0.1768)
OKLCH	oklch(51.96% 0.178 277.8)
XYZ	xyz(17.9697, 12.9452, 58.6668)
Luminance	0.1295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5556CC #CCCB55

analogous

#5592CC #5556CC #9055CC

triadic

#5556CC #CC5556 #56CC55

tetradic

#5556CC #CC5592 #CCCB55 #55CC90

square

#5556CC #CC5592 #CCCB55 #55CC90

split-complementary

#5556CC #CC9055 #92CC55

monochromatic

#262780 #3536AF #5556CC #8485DA #B3B4E8

Accessibility & contrast

On white

5.85

#5556CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#5556CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5556CC

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5556CC	#FFFFFF	#000000	##FFFFFF
##5556CC	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD0

Deuteranopia (green-blind)

#0060CA

Tritanopia (blue-blind)

#007289

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5556cc;
/* rgb */ color: rgb(85, 86, 204);
/* oklch */ color: oklch(52.0% 0.178 277.8);

Tailwind

colors: {
  custom: {
    50: '#9085dc',
    500: '#5556cc',
    950: '#000000',
  },
}

SCSS

$custom: #5556cc;
$custom-light: #9085dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5556cc",
  "rgb": {
    "r": 85,
    "g": 86,
    "b": 204
  },
  "hsl": {
    "h": 239.496,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.51958,
    "c": 0.17843,
    "h": 277.8
  },
  "luminance": 0.12947
}

Semantic roles & 50–950 ramp

primary

#5556CC

secondary

#D7D6A6

accent

#DC4BDD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5556CC

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

Preview Lab → · Contrast checker → · Palette generator →