#556EA4#556EA4

#556EA4 is a mid, moderate blue. Relative luminance 0.158; OKLCH L 54.2% C 0.090 H 264.6°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#556EA4
RGB	rgb(85, 110, 164)
HSL	hsl(221, 32%, 49%)
HSV	hsv(221, 48%, 64%)
CMYK	cmyk(48.2%, 32.9%, 0%, 35.7%)
CIE-LAB	lab(46.66, 6.11, -31.92)
CIE-LCH	lch(46.66, 32.50, 280.83°)
OKLab	oklab(54.22% -0.0084 -0.0897)
OKLCH	oklch(54.22% 0.09 264.6)
XYZ	xyz(16.0209, 15.7625, 37.3130)
Luminance	0.1576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EA4 #A48B55

analogous

#5596A4 #556EA4 #6455A4

triadic

#556EA4 #A4556E #6EA455

tetradic

#556EA4 #A45596 #A48B55 #55A464

square

#556EA4 #A45596 #A48B55 #55A464

split-complementary

#556EA4 #A46455 #96A455

monochromatic

#2B3853 #40537C #556EA4 #7B8FBB #A4B2D0

Accessibility & contrast

On white

5.06

#556EA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#556EA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556EA4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EA4	#FFFFFF	#000000	##FFFFFF
##556EA4	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)

#5A72A6

Deuteranopia (green-blind)

#516BA3

Tritanopia (blue-blind)

#357981

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #556ea4;
/* rgb */ color: rgb(85, 110, 164);
/* oklch */ color: oklch(54.2% 0.090 264.6);

Tailwind

colors: {
  custom: {
    50: '#8997bf',
    500: '#556ea4',
    950: '#000000',
  },
}

SCSS

$custom: #556ea4;
$custom-light: #8997bf;
$custom-dark: #000000;

JSON

{
  "hex": "#556ea4",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 164
  },
  "hsl": {
    "h": 221.013,
    "s": 31.727,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54215,
    "c": 0.09006,
    "h": 264.6
  },
  "luminance": 0.15763
}

Semantic roles & 50–950 ramp

primary

#556EA4

secondary

#BDB198

accent

#A760C8

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0D12

muted

#7D7E81

Preview Lab

Preview with #556EA4

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

Preview Lab → · Contrast checker → · Palette generator →