#556DBE#556DBE

#556DBE is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.5% C 0.129 H 269.4°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#556DBE
RGB	rgb(85, 109, 190)
HSL	hsl(226, 45%, 54%)
HSV	hsv(226, 55%, 75%)
CMYK	cmyk(55.3%, 42.6%, 0%, 25.5%)
CIE-LAB	lab(47.73, 15.09, -45.37)
CIE-LCH	lch(47.73, 47.81, 288.40°)
OKLab	oklab(55.48% -0.0013 -0.1289)
OKLCH	oklch(55.48% 0.129 269.4)
XYZ	xyz(18.5061, 16.5849, 50.9312)
Luminance	0.1659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DBE #BEA655

analogous

#55A2BE #556DBE #7255BE

triadic

#556DBE #BE556D #6DBE55

tetradic

#556DBE #BE55A2 #BEA655 #55BE72

square

#556DBE #BE55A2 #BEA655 #55BE72

split-complementary

#556DBE #BE7255 #A2BE55

monochromatic

#2A3A6E #3B519B #556DBE #8193CF #AEB9E0

Accessibility & contrast

On white

4.86

#556DBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#556DBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DBE

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DBE	#FFFFFF	#000000	##FFFFFF
##556DBE	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A76C1

Deuteranopia (green-blind)

#3E6DBC

Tritanopia (blue-blind)

#1A7F8C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #556dbe;
/* rgb */ color: rgb(85, 109, 190);
/* oklch */ color: oklch(55.5% 0.129 269.4);

Tailwind

colors: {
  custom: {
    50: '#8c96d2',
    500: '#556dbe',
    950: '#000000',
  },
}

SCSS

$custom: #556dbe;
$custom-light: #8c96d2;
$custom-dark: #000000;

JSON

{
  "hex": "#556dbe",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 190
  },
  "hsl": {
    "h": 226.286,
    "s": 44.681,
    "l": 53.922
  },
  "oklch": {
    "l": 0.55484,
    "c": 0.12892,
    "h": 269.4
  },
  "luminance": 0.16586
}

Semantic roles & 50–950 ramp

primary

#556DBE

secondary

#CEC4A1

accent

#B753D4

background

#F9F9FC

surface

#F1F1F9

border

#CBCBD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #556DBE

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

Preview Lab → · Contrast checker → · Palette generator →