#556EBC#556EBC

#556EBC is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.6% C 0.125 H 268.7°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#556EBC
RGB	rgb(85, 110, 188)
HSL	hsl(225, 43%, 54%)
HSV	hsv(225, 55%, 74%)
CMYK	cmyk(54.8%, 41.5%, 0%, 26.3%)
CIE-LAB	lab(47.90, 13.81, -43.95)
CIE-LCH	lch(47.90, 46.07, 287.44°)
OKLab	oklab(55.57% -0.0028 -0.1248)
OKLCH	oklch(55.57% 0.125 268.7)
XYZ	xyz(18.3963, 16.7127, 49.8237)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EBC #BCA355

analogous

#55A1BC #556EBC #6F55BC

triadic

#556EBC #BC556E #6EBC55

tetradic

#556EBC #BC55A1 #BCA355 #55BC6F

square

#556EBC #BC55A1 #BCA355 #55BC6F

split-complementary

#556EBC #BC6F55 #A1BC55

monochromatic

#2B3A6C #3C5298 #556EBC #8193CD #ADB9DF

Accessibility & contrast

On white

4.84

#556EBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#556EBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556EBC

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EBC	#FFFFFF	#000000	##FFFFFF
##556EBC	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D77BF

Deuteranopia (green-blind)

#416DBA

Tritanopia (blue-blind)

#1D7F8C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #556ebc;
/* rgb */ color: rgb(85, 110, 188);
/* oklch */ color: oklch(55.6% 0.125 268.7);

Tailwind

colors: {
  custom: {
    50: '#8c97d0',
    500: '#556ebc',
    950: '#000000',
  },
}

SCSS

$custom: #556ebc;
$custom-light: #8c97d0;
$custom-dark: #000000;

JSON

{
  "hex": "#556ebc",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 188
  },
  "hsl": {
    "h": 225.437,
    "s": 43.46,
    "l": 53.529
  },
  "oklch": {
    "l": 0.55573,
    "c": 0.12479,
    "h": 268.7
  },
  "luminance": 0.16714
}

Semantic roles & 50–950 ramp

primary

#556EBC

secondary

#CCC2A0

accent

#B455D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0D0D14

muted

#7D7E82

Preview Lab

Preview with #556EBC

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

Preview Lab → · Contrast checker → · Palette generator →