#556FAC#556FAC

#556FAC is a mid, moderate blue. Relative luminance 0.163; OKLCH L 54.9% C 0.100 H 265.7°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#556FAC
RGB	rgb(85, 111, 172)
HSL	hsl(222, 34%, 50%)
HSV	hsv(222, 51%, 67%)
CMYK	cmyk(50.6%, 35.5%, 0%, 32.5%)
CIE-LAB	lab(47.34, 8.02, -35.54)
CIE-LCH	lch(47.34, 36.44, 282.71°)
OKLab	oklab(54.87% -0.0076 -0.1002)
OKLCH	oklch(54.87% 0.1 265.7)
XYZ	xyz(16.8747, 16.2776, 41.2744)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FAC #AC9255

analogous

#559AAC #556FAC #6655AC

triadic

#556FAC #AC556F #6FAC55

tetradic

#556FAC #AC559A #AC9255 #55AC66

square

#556FAC #AC559A #AC9255 #55AC66

split-complementary

#556FAC #AC6655 #9AAC55

monochromatic

#2C3A5A #405484 #556FAC #7E92C0 #A7B5D4

Accessibility & contrast

On white

4.93

#556FAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#556FAC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556FAC

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FAC	#FFFFFF	#000000	##FFFFFF
##556FAC	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5875AF

Deuteranopia (green-blind)

#4E6DAB

Tritanopia (blue-blind)

#2F7C85

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556fac;
/* rgb */ color: rgb(85, 111, 172);
/* oklch */ color: oklch(54.9% 0.100 265.7);

Tailwind

colors: {
  custom: {
    50: '#8a98c5',
    500: '#556fac',
    950: '#000000',
  },
}

SCSS

$custom: #556fac;
$custom-light: #8a98c5;
$custom-dark: #000000;

JSON

{
  "hex": "#556fac",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 172
  },
  "hsl": {
    "h": 222.069,
    "s": 34.387,
    "l": 50.392
  },
  "oklch": {
    "l": 0.54868,
    "c": 0.10047,
    "h": 265.7
  },
  "luminance": 0.16279
}

Semantic roles & 50–950 ramp

primary

#556FAC

secondary

#C2B69B

accent

#AA5DCA

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556FAC

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

Preview Lab → · Contrast checker → · Palette generator →