#556CC4#556CC4

#556CC4 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.6% C 0.139 H 270.4°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#556CC4
RGB	rgb(85, 108, 196)
HSL	hsl(228, 48%, 55%)
HSV	hsv(228, 57%, 77%)
CMYK	cmyk(56.6%, 44.9%, 0%, 23.1%)
CIE-LAB	lab(47.80, 17.69, -48.71)
CIE-LCH	lch(47.80, 51.83, 289.96°)
OKLab	oklab(55.65% 0.0009 -0.1387)
OKLCH	oklch(55.65% 0.139 270.4)
XYZ	xyz(19.0694, 16.6405, 54.4209)
Luminance	0.1664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CC4 #C4AD55

analogous

#55A3C4 #556CC4 #7655C4

triadic

#556CC4 #C4556C #6CC455

tetradic

#556CC4 #C455A3 #C4AD55 #55C476

square

#556CC4 #C455A3 #C4AD55 #55C476

split-complementary

#556CC4 #C47655 #A3C455

monochromatic

#293976 #394FA3 #556CC4 #8293D4 #B0BBE4

Accessibility & contrast

On white

4.85

#556CC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#556CC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556CC4

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CC4	#FFFFFF	#000000	##FFFFFF
##556CC4	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4477C7

Deuteranopia (green-blind)

#366DC2

Tritanopia (blue-blind)

#0D7F8E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #556cc4;
/* rgb */ color: rgb(85, 108, 196);
/* oklch */ color: oklch(55.6% 0.139 270.4);

Tailwind

colors: {
  custom: {
    50: '#8d95d6',
    500: '#556cc4',
    950: '#000000',
  },
}

SCSS

$custom: #556cc4;
$custom-light: #8d95d6;
$custom-dark: #000000;

JSON

{
  "hex": "#556cc4",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 196
  },
  "hsl": {
    "h": 227.568,
    "s": 48.472,
    "l": 55.098
  },
  "oklch": {
    "l": 0.55649,
    "c": 0.13874,
    "h": 270.4
  },
  "luminance": 0.16642
}

Semantic roles & 50–950 ramp

primary

#556CC4

secondary

#D2C8A3

accent

#BC50D8

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556CC4

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

Preview Lab → · Contrast checker → · Palette generator →