#556CB2#556CB2

#556CB2 is a mid, moderate blue. Relative luminance 0.159; OKLCH L 54.6% C 0.113 H 268.7°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#556CB2
RGB	rgb(85, 108, 178)
HSL	hsl(225, 38%, 52%)
HSV	hsv(225, 52%, 70%)
CMYK	cmyk(52.2%, 39.3%, 0%, 30.2%)
CIE-LAB	lab(46.80, 11.79, -39.89)
CIE-LCH	lch(46.80, 41.59, 286.47°)
OKLab	oklab(54.56% -0.0025 -0.1129)
OKLCH	oklch(54.56% 0.113 268.7)
XYZ	xyz(17.1421, 15.8696, 44.2707)
Luminance	0.1587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CB2 #B29B55

analogous

#559BB2 #556CB2 #6D55B2

triadic

#556CB2 #B2556C #6CB255

tetradic

#556CB2 #B2559B #B29B55 #55B26D

square

#556CB2 #B2559B #B29B55 #55B26D

split-complementary

#556CB2 #B26D55 #9BB255

monochromatic

#2C3961 #3F528B #556CB2 #7F90C5 #A9B5D8

Accessibility & contrast

On white

5.03

#556CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#556CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556CB2

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CB2	#FFFFFF	#000000	##FFFFFF
##556CB2	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5073B5

Deuteranopia (green-blind)

#466BB0

Tritanopia (blue-blind)

#2A7B86

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #556cb2;
/* rgb */ color: rgb(85, 108, 178);
/* oklch */ color: oklch(54.6% 0.113 268.7);

Tailwind

colors: {
  custom: {
    50: '#8b95c9',
    500: '#556cb2',
    950: '#000000',
  },
}

SCSS

$custom: #556cb2;
$custom-light: #8b95c9;
$custom-dark: #000000;

JSON

{
  "hex": "#556cb2",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 178
  },
  "hsl": {
    "h": 225.161,
    "s": 37.652,
    "l": 51.569
  },
  "oklch": {
    "l": 0.54556,
    "c": 0.1129,
    "h": 268.7
  },
  "luminance": 0.15871
}

Semantic roles & 50–950 ramp

primary

#556CB2

secondary

#C6BC9D

accent

#B15ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556CB2

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

Preview Lab → · Contrast checker → · Palette generator →