#556CD9#556CD9

#556CD9 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.0% C 0.168 H 271.2°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#556CD9
RGB	rgb(85, 108, 217)
HSL	hsl(230, 63%, 59%)
HSV	hsv(230, 61%, 85%)
CMYK	cmyk(60.8%, 50.2%, 0%, 14.9%)
CIE-LAB	lab(49.09, 24.71, -58.65)
CIE-LCH	lch(49.09, 63.65, 292.85°)
OKLab	oklab(57.04% 0.0035 -0.168)
OKLCH	oklch(57.04% 0.168 271.2)
XYZ	xyz(21.6291, 17.6644, 67.9020)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CD9 #D9C255

analogous

#55AED9 #556CD9 #8055D9

triadic

#556CD9 #D9556C #6CD955

tetradic

#556CD9 #D955AE #D9C255 #55D980

square

#556CD9 #D955AE #D9C255 #55D980

split-complementary

#556CD9 #D98055 #AED955

monochromatic

#213593 #2C47C5 #556CD9 #8797E4 #B9C3EF

Accessibility & contrast

On white

4.63

#556CD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#556CD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556CD9

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CD9	#FFFFFF	#000000	##FFFFFF
##556CD9	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#307BDD

Deuteranopia (green-blind)

#0E6FD7

Tritanopia (blue-blind)

#008598

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556cd9;
/* rgb */ color: rgb(85, 108, 217);
/* oklch */ color: oklch(57.0% 0.168 271.2);

Tailwind

colors: {
  custom: {
    50: '#9195e5',
    500: '#556cd9',
    950: '#000000',
  },
}

SCSS

$custom: #556cd9;
$custom-light: #9195e5;
$custom-dark: #000000;

JSON

{
  "hex": "#556cd9",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 217
  },
  "hsl": {
    "h": 229.545,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.57037,
    "c": 0.168,
    "h": 271.2
  },
  "luminance": 0.17666
}

Semantic roles & 50–950 ramp

primary

#556CD9

secondary

#DFD6AB

accent

#CA41E6

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556CD9

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

Preview Lab → · Contrast checker → · Palette generator →