#556BC4#556BC4

#556BC4 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.4% C 0.140 H 270.8°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#556BC4
RGB	rgb(85, 107, 196)
HSL	hsl(228, 48%, 55%)
HSV	hsv(228, 57%, 77%)
CMYK	cmyk(56.6%, 45.4%, 0%, 23.1%)
CIE-LAB	lab(47.53, 18.32, -49.14)
CIE-LCH	lch(47.53, 52.45, 290.44°)
OKLab	oklab(55.44% 0.002 -0.14)
OKLCH	oklch(55.44% 0.14 270.8)
XYZ	xyz(18.9645, 16.4308, 54.3859)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BC4 #C4AE55

analogous

#55A3C4 #556BC4 #7655C4

triadic

#556BC4 #C4556B #6BC455

tetradic

#556BC4 #C455A3 #C4AE55 #55C476

square

#556BC4 #C455A3 #C4AE55 #55C476

split-complementary

#556BC4 #C47655 #A3C455

monochromatic

#293876 #394EA3 #556BC4 #8293D4 #B0BAE4

Accessibility & contrast

On white

4.90

#556BC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#556BC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BC4

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BC4	#FFFFFF	#000000	##FFFFFF
##556BC4	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4376C7

Deuteranopia (green-blind)

#346CC2

Tritanopia (blue-blind)

#0D7F8E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #556bc4;
/* rgb */ color: rgb(85, 107, 196);
/* oklch */ color: oklch(55.4% 0.140 270.8);

Tailwind

colors: {
  custom: {
    50: '#8d95d6',
    500: '#556bc4',
    950: '#000000',
  },
}

SCSS

$custom: #556bc4;
$custom-light: #8d95d6;
$custom-dark: #000000;

JSON

{
  "hex": "#556bc4",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 196
  },
  "hsl": {
    "h": 228.108,
    "s": 48.472,
    "l": 55.098
  },
  "oklch": {
    "l": 0.55444,
    "c": 0.14002,
    "h": 270.8
  },
  "luminance": 0.16432
}

Semantic roles & 50–950 ramp

primary

#556BC4

secondary

#D2C8A3

accent

#BD50D8

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556BC4

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

Preview Lab → · Contrast checker → · Palette generator →