#556BD4#556BD4

#556BD4 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.5% C 0.162 H 271.4°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#556BD4
RGB	rgb(85, 107, 212)
HSL	hsl(230, 60%, 58%)
HSV	hsv(230, 60%, 83%)
CMYK	cmyk(59.9%, 49.5%, 0%, 16.9%)
CIE-LAB	lab(48.51, 23.66, -56.74)
CIE-LCH	lch(48.51, 61.47, 292.63°)
OKLab	oklab(56.5% 0.004 -0.1623)
OKLCH	oklch(56.5% 0.162 271.4)
XYZ	xyz(20.8837, 17.1985, 64.4937)
Luminance	0.1720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BD4 #D4BE55

analogous

#55AAD4 #556BD4 #7E55D4

triadic

#556BD4 #D4556B #6BD455

tetradic

#556BD4 #D455AA #D4BE55 #55D47E

square

#556BD4 #D455AA #D4BE55 #55D47E

split-complementary

#556BD4 #D47E55 #AAD455

monochromatic

#23358B #3048BC #556BD4 #8696E0 #B7C0ED

Accessibility & contrast

On white

4.73

#556BD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#556BD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BD4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BD4	#FFFFFF	#000000	##FFFFFF
##556BD4	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3379D8

Deuteranopia (green-blind)

#196ED2

Tritanopia (blue-blind)

#008395

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556bd4;
/* rgb */ color: rgb(85, 107, 212);
/* oklch */ color: oklch(56.5% 0.162 271.4);

Tailwind

colors: {
  custom: {
    50: '#9095e2',
    500: '#556bd4',
    950: '#000000',
  },
}

SCSS

$custom: #556bd4;
$custom-light: #9095e2;
$custom-dark: #000000;

JSON

{
  "hex": "#556bd4",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 212
  },
  "hsl": {
    "h": 229.606,
    "s": 59.624,
    "l": 58.235
  },
  "oklch": {
    "l": 0.56498,
    "c": 0.16239,
    "h": 271.4
  },
  "luminance": 0.172
}

Semantic roles & 50–950 ramp

primary

#556BD4

secondary

#DCD3A9

accent

#C745E3

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #556BD4

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

Preview Lab → · Contrast checker → · Palette generator →