#556BB2#556BB2

#556BB2 is a mid, moderate blue. Relative luminance 0.157; OKLCH L 54.3% C 0.114 H 269.3°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#556BB2
RGB	rgb(85, 107, 178)
HSL	hsl(226, 38%, 52%)
HSV	hsv(226, 52%, 70%)
CMYK	cmyk(52.2%, 39.9%, 0%, 30.2%)
CIE-LAB	lab(46.53, 12.41, -40.33)
CIE-LCH	lch(46.53, 42.19, 287.11°)
OKLab	oklab(54.34% -0.0013 -0.1142)
OKLCH	oklch(54.34% 0.114 269.3)
XYZ	xyz(17.0373, 15.6599, 44.2357)
Luminance	0.1566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BB2 #B29C55

analogous

#559AB2 #556BB2 #6E55B2

triadic

#556BB2 #B2556B #6BB255

tetradic

#556BB2 #B2559A #B29C55 #55B26E

square

#556BB2 #B2559A #B29C55 #55B26E

split-complementary

#556BB2 #B26E55 #9AB255

monochromatic

#2C3861 #3F518B #556BB2 #7F90C5 #A9B4D8

Accessibility & contrast

On white

5.08

#556BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#556BB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BB2

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BB2	#FFFFFF	#000000	##FFFFFF
##556BB2	1.00	5.08	4.13	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F73B5

Deuteranopia (green-blind)

#446AB0

Tritanopia (blue-blind)

#2A7A86

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #556bb2;
/* rgb */ color: rgb(85, 107, 178);
/* oklch */ color: oklch(54.3% 0.114 269.3);

Tailwind

colors: {
  custom: {
    50: '#8b95c9',
    500: '#556bb2',
    950: '#000000',
  },
}

SCSS

$custom: #556bb2;
$custom-light: #8b95c9;
$custom-dark: #000000;

JSON

{
  "hex": "#556bb2",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 178
  },
  "hsl": {
    "h": 225.806,
    "s": 37.652,
    "l": 51.569
  },
  "oklch": {
    "l": 0.54342,
    "c": 0.11418,
    "h": 269.3
  },
  "luminance": 0.15661
}

Semantic roles & 50–950 ramp

primary

#556BB2

secondary

#C6BC9D

accent

#B25ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556BB2

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

Preview Lab → · Contrast checker → · Palette generator →