#556DC9#556DC9

#556DC9 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.2% C 0.145 H 270.2°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#556DC9
RGB	rgb(85, 109, 201)
HSL	hsl(228, 52%, 56%)
HSV	hsv(228, 58%, 79%)
CMYK	cmyk(57.7%, 45.8%, 0%, 21.2%)
CIE-LAB	lab(48.37, 18.73, -50.69)
CIE-LCH	lch(48.37, 54.04, 290.28°)
OKLab	oklab(56.17% 0.0005 -0.1445)
OKLCH	oklch(56.17% 0.145 270.2)
XYZ	xyz(19.7541, 17.0841, 57.5036)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DC9 #C9B155

analogous

#55A7C9 #556DC9 #7755C9

triadic

#556DC9 #C9556D #6DC955

tetradic

#556DC9 #C955A7 #C9B155 #55C977

square

#556DC9 #C955A7 #C9B155 #55C977

split-complementary

#556DC9 #C97755 #A7C955

monochromatic

#27397C #364EAB #556DC9 #8395D8 #B2BDE7

Accessibility & contrast

On white

4.75

#556DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#556DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DC9

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DC9	#FFFFFF	#000000	##FFFFFF
##556DC9	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4278CC

Deuteranopia (green-blind)

#326EC7

Tritanopia (blue-blind)

#008291

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556dc9;
/* rgb */ color: rgb(85, 109, 201);
/* oklch */ color: oklch(56.2% 0.145 270.2);

Tailwind

colors: {
  custom: {
    50: '#8e96da',
    500: '#556dc9',
    950: '#000000',
  },
}

SCSS

$custom: #556dc9;
$custom-light: #8e96da;
$custom-dark: #000000;

JSON

{
  "hex": "#556dc9",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 201
  },
  "hsl": {
    "h": 227.586,
    "s": 51.786,
    "l": 56.078
  },
  "oklch": {
    "l": 0.56173,
    "c": 0.14452,
    "h": 270.2
  },
  "luminance": 0.17086
}

Semantic roles & 50–950 ramp

primary

#556DC9

secondary

#D5CBA5

accent

#BE4DDB

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556DC9

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

Preview Lab → · Contrast checker → · Palette generator →