#556BD0#556BD0

#556BD0 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.2% C 0.157 H 271.3°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#556BD0
RGB	rgb(85, 107, 208)
HSL	hsl(229, 57%, 57%)
HSV	hsv(229, 59%, 82%)
CMYK	cmyk(59.1%, 48.6%, 0%, 18.4%)
CIE-LAB	lab(48.26, 22.32, -54.86)
CIE-LCH	lch(48.26, 59.23, 292.13°)
OKLab	oklab(56.23% 0.0036 -0.1568)
OKLCH	oklch(56.23% 0.157 271.3)
XYZ	xyz(20.3854, 16.9991, 61.8692)
Luminance	0.1700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BD0 #D0BA55

analogous

#55A9D0 #556BD0 #7C55D0

triadic

#556BD0 #D0556B #6BD055

tetradic

#556BD0 #D055A9 #D0BA55 #55D07C

square

#556BD0 #D055A9 #D0BA55 #55D07C

split-complementary

#556BD0 #D07C55 #A9D055

monochromatic

#253686 #324AB6 #556BD0 #8595DD #B5BEEB

Accessibility & contrast

On white

4.77

#556BD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#556BD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BD0

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BD0	#FFFFFF	#000000	##FFFFFF
##556BD0	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3878D4

Deuteranopia (green-blind)

#226DCE

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556bd0;
/* rgb */ color: rgb(85, 107, 208);
/* oklch */ color: oklch(56.2% 0.157 271.3);

Tailwind

colors: {
  custom: {
    50: '#8f95df',
    500: '#556bd0',
    950: '#000000',
  },
}

SCSS

$custom: #556bd0;
$custom-light: #8f95df;
$custom-dark: #000000;

JSON

{
  "hex": "#556bd0",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 208
  },
  "hsl": {
    "h": 229.268,
    "s": 56.682,
    "l": 57.451
  },
  "oklch": {
    "l": 0.56228,
    "c": 0.15686,
    "h": 271.3
  },
  "luminance": 0.17001
}

Semantic roles & 50–950 ramp

primary

#556BD0

secondary

#D9D0A8

accent

#C548E0

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556BD0

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

Preview Lab → · Contrast checker → · Palette generator →