#556DAA#556DAA

#556DAA is a mid, moderate blue. Relative luminance 0.158; OKLCH L 54.3% C 0.100 H 266.8°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#556DAA
RGB	rgb(85, 109, 170)
HSL	hsl(223, 33%, 50%)
HSV	hsv(223, 50%, 67%)
CMYK	cmyk(50%, 35.9%, 0%, 33.3%)
CIE-LAB	lab(46.67, 8.61, -35.42)
CIE-LCH	lch(46.67, 36.45, 283.66°)
OKLab	oklab(54.32% -0.0056 -0.0998)
OKLCH	oklch(54.32% 0.1 266.8)
XYZ	xyz(16.4683, 15.7698, 40.1985)
Luminance	0.1577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DAA #AA9255

analogous

#5597AA #556DAA #6855AA

triadic

#556DAA #AA556D #6DAA55

tetradic

#556DAA #AA5597 #AA9255 #55AA68

square

#556DAA #AA5597 #AA9255 #55AA68

split-complementary

#556DAA #AA6855 #97AA55

monochromatic

#2C3958 #415381 #556DAA #7E90BE #A7B3D3

Accessibility & contrast

On white

5.06

#556DAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#556DAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DAA

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

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

#5673AC

Deuteranopia (green-blind)

#4D6BA9

Tritanopia (blue-blind)

#317A83

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #556daa;
/* rgb */ color: rgb(85, 109, 170);
/* oklch */ color: oklch(54.3% 0.100 266.8);

Tailwind

colors: {
  custom: {
    50: '#8a96c3',
    500: '#556daa',
    950: '#000000',
  },
}

SCSS

$custom: #556daa;
$custom-light: #8a96c3;
$custom-dark: #000000;

JSON

{
  "hex": "#556daa",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 170
  },
  "hsl": {
    "h": 223.059,
    "s": 33.333,
    "l": 50
  },
  "oklch": {
    "l": 0.54319,
    "c": 0.10001,
    "h": 266.8
  },
  "luminance": 0.15771
}

Semantic roles & 50–950 ramp

primary

#556DAA

secondary

#C0B69A

accent

#AB5EC9

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D12

muted

#7D7E81

Preview Lab

Preview with #556DAA

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

Preview Lab → · Contrast checker → · Palette generator →