#556DBD#556DBD

#556DBD is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.4% C 0.127 H 269.3°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#556DBD
RGB	rgb(85, 109, 189)
HSL	hsl(226, 44%, 54%)
HSV	hsv(226, 55%, 74%)
CMYK	cmyk(55%, 42.3%, 0%, 25.9%)
CIE-LAB	lab(47.68, 14.76, -44.88)
CIE-LCH	lch(47.68, 47.24, 288.20°)
OKLab	oklab(55.42% -0.0015 -0.1275)
OKLCH	oklch(55.42% 0.127 269.3)
XYZ	xyz(18.3972, 16.5414, 50.3576)
Luminance	0.1654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DBD #BDA555

analogous

#55A1BD #556DBD #7155BD

triadic

#556DBD #BD556D #6DBD55

tetradic

#556DBD #BD55A1 #BDA555 #55BD71

square

#556DBD #BD55A1 #BDA555 #55BD71

split-complementary

#556DBD #BD7155 #A1BD55

monochromatic

#2A3A6D #3C5199 #556DBD #8193CE #ADB9DF

Accessibility & contrast

On white

4.87

#556DBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#556DBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DBD

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DBD	#FFFFFF	#000000	##FFFFFF
##556DBD	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B76C0

Deuteranopia (green-blind)

#3F6DBB

Tritanopia (blue-blind)

#1C7E8C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #556dbd;
/* rgb */ color: rgb(85, 109, 189);
/* oklch */ color: oklch(55.4% 0.127 269.3);

Tailwind

colors: {
  custom: {
    50: '#8c96d1',
    500: '#556dbd',
    950: '#000000',
  },
}

SCSS

$custom: #556dbd;
$custom-light: #8c96d1;
$custom-dark: #000000;

JSON

{
  "hex": "#556dbd",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 189
  },
  "hsl": {
    "h": 226.154,
    "s": 44.068,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55423,
    "c": 0.12749,
    "h": 269.3
  },
  "luminance": 0.16543
}

Semantic roles & 50–950 ramp

primary

#556DBD

secondary

#CDC3A1

accent

#B654D4

background

#F9F9FC

surface

#F1F1F9

border

#CBCBD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #556DBD

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

Preview Lab → · Contrast checker → · Palette generator →