#556FD0#556FD0

#556FD0 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.0% C 0.152 H 269.8°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#556FD0
RGB	rgb(85, 111, 208)
HSL	hsl(227, 57%, 57%)
HSV	hsv(227, 59%, 82%)
CMYK	cmyk(59.1%, 46.6%, 0%, 18.4%)
CIE-LAB	lab(49.32, 19.83, -53.17)
CIE-LCH	lch(49.32, 56.74, 290.45°)
OKLab	oklab(57.03% -0.0006 -0.1518)
OKLCH	oklch(57.03% 0.152 269.8)
XYZ	xyz(20.8121, 17.8526, 62.0114)
Luminance	0.1785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FD0 #D0B655

analogous

#55ADD0 #556FD0 #7855D0

triadic

#556FD0 #D0556F #6FD055

tetradic

#556FD0 #D055AD #D0B655 #55D078

square

#556FD0 #D055AD #D0B655 #55D078

split-complementary

#556FD0 #D07855 #ADD055

monochromatic

#253986 #324EB6 #556FD0 #8598DD #B5C0EB

Accessibility & contrast

On white

4.59

#556FD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#556FD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556FD0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FD0	#FFFFFF	#000000	##FFFFFF
##556FD0	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407BD4

Deuteranopia (green-blind)

#2D70CE

Tritanopia (blue-blind)

#008595

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556fd0;
/* rgb */ color: rgb(85, 111, 208);
/* oklch */ color: oklch(57.0% 0.152 269.8);

Tailwind

colors: {
  custom: {
    50: '#8f98df',
    500: '#556fd0',
    950: '#000000',
  },
}

SCSS

$custom: #556fd0;
$custom-light: #8f98df;
$custom-dark: #000000;

JSON

{
  "hex": "#556fd0",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 208
  },
  "hsl": {
    "h": 227.317,
    "s": 56.682,
    "l": 57.451
  },
  "oklch": {
    "l": 0.57033,
    "c": 0.15178,
    "h": 269.8
  },
  "luminance": 0.17854
}

Semantic roles & 50–950 ramp

primary

#556FD0

secondary

#D9CFA8

accent

#C048E0

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556FD0

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

Preview Lab → · Contrast checker → · Palette generator →