#556BBD#556BBD

#556BBD is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.0% C 0.130 H 270.4°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#556BBD
RGB	rgb(85, 107, 189)
HSL	hsl(227, 44%, 54%)
HSV	hsv(227, 55%, 74%)
CMYK	cmyk(55%, 43.4%, 0%, 25.9%)
CIE-LAB	lab(47.13, 16.00, -45.75)
CIE-LCH	lch(47.13, 48.47, 289.28°)
OKLab	oklab(55% 0.0008 -0.13)
OKLCH	oklch(55% 0.13 270.4)
XYZ	xyz(18.1863, 16.1195, 50.2873)
Luminance	0.1612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BBD #BDA755

analogous

#559FBD #556BBD #7355BD

triadic

#556BBD #BD556B #6BBD55

tetradic

#556BBD #BD559F #BDA755 #55BD73

square

#556BBD #BD559F #BDA755 #55BD73

split-complementary

#556BBD #BD7355 #9FBD55

monochromatic

#2A396D #3C4F99 #556BBD #8191CE #ADB8DF

Accessibility & contrast

On white

4.97

#556BBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#556BBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BBD

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BBD	#FFFFFF	#000000	##FFFFFF
##556BBD	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4875C0

Deuteranopia (green-blind)

#3B6BBB

Tritanopia (blue-blind)

#1C7D8B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556bbd;
/* rgb */ color: rgb(85, 107, 189);
/* oklch */ color: oklch(55.0% 0.130 270.4);

Tailwind

colors: {
  custom: {
    50: '#8c95d1',
    500: '#556bbd',
    950: '#000000',
  },
}

SCSS

$custom: #556bbd;
$custom-light: #8c95d1;
$custom-dark: #000000;

JSON

{
  "hex": "#556bbd",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 189
  },
  "hsl": {
    "h": 227.308,
    "s": 44.068,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55004,
    "c": 0.13005,
    "h": 270.4
  },
  "luminance": 0.16121
}

Semantic roles & 50–950 ramp

primary

#556BBD

secondary

#CDC4A1

accent

#B954D4

background

#F9F9FC

surface

#F1F1F9

border

#CBCBD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #556BBD

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

Preview Lab → · Contrast checker → · Palette generator →