#556DA4#556DA4

#556DA4 is a mid, moderate blue. Relative luminance 0.155; OKLCH L 54.0% C 0.091 H 265.5°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#556DA4
RGB	rgb(85, 109, 164)
HSL	hsl(222, 32%, 49%)
HSV	hsv(222, 48%, 64%)
CMYK	cmyk(48.2%, 33.5%, 0%, 35.7%)
CIE-LAB	lab(46.38, 6.72, -32.37)
CIE-LCH	lch(46.38, 33.06, 281.73°)
OKLab	oklab(53.99% -0.0071 -0.091)
OKLCH	oklch(53.99% 0.091 265.5)
XYZ	xyz(15.9136, 15.5479, 37.2773)
Luminance	0.1555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DA4 #A48C55

analogous

#5595A4 #556DA4 #6555A4

triadic

#556DA4 #A4556D #6DA455

tetradic

#556DA4 #A45595 #A48C55 #55A465

square

#556DA4 #A45595 #A48C55 #55A465

split-complementary

#556DA4 #A46555 #95A455

monochromatic

#2B3753 #40527C #556DA4 #7B8FBB #A4B1D0

Accessibility & contrast

On white

5.11

#556DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#556DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DA4

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DA4	#FFFFFF	#000000	##FFFFFF
##556DA4	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5972A6

Deuteranopia (green-blind)

#506BA3

Tritanopia (blue-blind)

#357981

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #556da4;
/* rgb */ color: rgb(85, 109, 164);
/* oklch */ color: oklch(54.0% 0.091 265.5);

Tailwind

colors: {
  custom: {
    50: '#8996bf',
    500: '#556da4',
    950: '#000000',
  },
}

SCSS

$custom: #556da4;
$custom-light: #8996bf;
$custom-dark: #000000;

JSON

{
  "hex": "#556da4",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 164
  },
  "hsl": {
    "h": 221.772,
    "s": 31.727,
    "l": 48.824
  },
  "oklch": {
    "l": 0.53993,
    "c": 0.09125,
    "h": 265.5
  },
  "luminance": 0.15549
}

Semantic roles & 50–950 ramp

primary

#556DA4

secondary

#BDB298

accent

#A860C8

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0D12

muted

#7D7E81

Preview Lab

Preview with #556DA4

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

Preview Lab → · Contrast checker → · Palette generator →