#556BBC#556BBC

#556BBC is a mid, vivid blue. Relative luminance 0.161; OKLCH L 54.9% C 0.129 H 270.3°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#556BBC
RGB	rgb(85, 107, 188)
HSL	hsl(227, 43%, 54%)
HSV	hsv(227, 55%, 74%)
CMYK	cmyk(54.8%, 43.1%, 0%, 26.3%)
CIE-LAB	lab(47.07, 15.67, -45.26)
CIE-LCH	lch(47.07, 47.90, 289.10°)
OKLab	oklab(54.94% 0.0006 -0.1286)
OKLCH	oklch(54.94% 0.129 270.3)
XYZ	xyz(18.0781, 16.0762, 49.7176)
Luminance	0.1608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BBC #BCA655

analogous

#559EBC #556BBC #7255BC

triadic

#556BBC #BC556B #6BBC55

tetradic

#556BBC #BC559E #BCA655 #55BC72

square

#556BBC #BC559E #BCA655 #55BC72

split-complementary

#556BBC #BC7255 #9EBC55

monochromatic

#2B396C #3C5098 #556BBC #8191CD #ADB7DF

Accessibility & contrast

On white

4.98

#556BBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#556BBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BBC

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BBC	#FFFFFF	#000000	##FFFFFF
##556BBC	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4874BF

Deuteranopia (green-blind)

#3C6BBA

Tritanopia (blue-blind)

#1E7D8A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556bbc;
/* rgb */ color: rgb(85, 107, 188);
/* oklch */ color: oklch(54.9% 0.129 270.3);

Tailwind

colors: {
  custom: {
    50: '#8c95d0',
    500: '#556bbc',
    950: '#000000',
  },
}

SCSS

$custom: #556bbc;
$custom-light: #8c95d0;
$custom-dark: #000000;

JSON

{
  "hex": "#556bbc",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 188
  },
  "hsl": {
    "h": 227.184,
    "s": 43.46,
    "l": 53.529
  },
  "oklch": {
    "l": 0.54942,
    "c": 0.12861,
    "h": 270.3
  },
  "luminance": 0.16078
}

Semantic roles & 50–950 ramp

primary

#556BBC

secondary

#CCC3A0

accent

#B855D3

background

#F9F9FC

surface

#F1F1F9

border

#CBCBD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #556BBC

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

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