#556BB4#556BB4

#556BB4 is a mid, moderate blue. Relative luminance 0.157; OKLCH L 54.5% C 0.117 H 269.6°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#556BB4
RGB	rgb(85, 107, 180)
HSL	hsl(226, 39%, 52%)
HSV	hsv(226, 53%, 71%)
CMYK	cmyk(52.8%, 40.6%, 0%, 29.4%)
CIE-LAB	lab(46.63, 13.06, -41.32)
CIE-LCH	lch(46.63, 43.33, 287.54°)
OKLab	oklab(54.46% -0.0009 -0.1171)
OKLCH	oklch(54.46% 0.117 269.6)
XYZ	xyz(17.2395, 15.7408, 45.3010)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BB4 #B49E55

analogous

#559BB4 #556BB4 #6E55B4

triadic

#556BB4 #B4556B #6BB455

tetradic

#556BB4 #B4559B #B49E55 #55B46E

square

#556BB4 #B4559B #B49E55 #55B46E

split-complementary

#556BB4 #B46E55 #9BB455

monochromatic

#2C3863 #3E518D #556BB4 #7F90C7 #AAB5D9

Accessibility & contrast

On white

5.06

#556BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#556BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BB4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BB4	#FFFFFF	#000000	##FFFFFF
##556BB4	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D73B7

Deuteranopia (green-blind)

#436BB2

Tritanopia (blue-blind)

#287B87

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #556bb4;
/* rgb */ color: rgb(85, 107, 180);
/* oklch */ color: oklch(54.5% 0.117 269.6);

Tailwind

colors: {
  custom: {
    50: '#8b95cb',
    500: '#556bb4',
    950: '#000000',
  },
}

SCSS

$custom: #556bb4;
$custom-light: #8b95cb;
$custom-dark: #000000;

JSON

{
  "hex": "#556bb4",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 180
  },
  "hsl": {
    "h": 226.105,
    "s": 38.776,
    "l": 51.961
  },
  "oklch": {
    "l": 0.5446,
    "c": 0.11707,
    "h": 269.6
  },
  "luminance": 0.15742
}

Semantic roles & 50–950 ramp

primary

#556BB4

secondary

#C7BE9E

accent

#B359CF

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556BB4

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

Preview Lab → · Contrast checker → · Palette generator →