#556DB4#556DB4

#556DB4 is a mid, moderate blue. Relative luminance 0.162; OKLCH L 54.9% C 0.115 H 268.4°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#556DB4
RGB	rgb(85, 109, 180)
HSL	hsl(225, 39%, 52%)
HSV	hsv(225, 53%, 71%)
CMYK	cmyk(52.8%, 39.4%, 0%, 29.4%)
CIE-LAB	lab(47.19, 11.82, -40.44)
CIE-LCH	lch(47.19, 42.13, 286.29°)
OKLab	oklab(54.89% -0.0033 -0.1145)
OKLCH	oklch(54.89% 0.115 268.4)
XYZ	xyz(17.4505, 16.1627, 45.3713)
Luminance	0.1616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DB4 #B49C55

analogous

#559DB4 #556DB4 #6D55B4

triadic

#556DB4 #B4556D #6DB455

tetradic

#556DB4 #B4559D #B49C55 #55B46D

square

#556DB4 #B4559D #B49C55 #55B46D

split-complementary

#556DB4 #B46D55 #9DB455

monochromatic

#2C3A63 #3E528D #556DB4 #7F91C7 #AAB6D9

Accessibility & contrast

On white

4.96

#556DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#556DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DB4

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DB4	#FFFFFF	#000000	##FFFFFF
##556DB4	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5174B7

Deuteranopia (green-blind)

#466CB2

Tritanopia (blue-blind)

#277C88

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556db4;
/* rgb */ color: rgb(85, 109, 180);
/* oklch */ color: oklch(54.9% 0.115 268.4);

Tailwind

colors: {
  custom: {
    50: '#8b96cb',
    500: '#556db4',
    950: '#000000',
  },
}

SCSS

$custom: #556db4;
$custom-light: #8b96cb;
$custom-dark: #000000;

JSON

{
  "hex": "#556db4",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 180
  },
  "hsl": {
    "h": 224.842,
    "s": 38.776,
    "l": 51.961
  },
  "oklch": {
    "l": 0.54887,
    "c": 0.11454,
    "h": 268.4
  },
  "luminance": 0.16164
}

Semantic roles & 50–950 ramp

primary

#556DB4

secondary

#C7BD9E

accent

#B159CF

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556DB4

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

Preview Lab → · Contrast checker → · Palette generator →