#556DC6#556DC6

#556DC6 is a mid, vivid blue. Relative luminance 0.169; OKLCH L 56.0% C 0.140 H 270.0°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#556DC6
RGB	rgb(85, 109, 198)
HSL	hsl(227, 50%, 55%)
HSV	hsv(227, 57%, 78%)
CMYK	cmyk(57.1%, 44.9%, 0%, 22.4%)
CIE-LAB	lab(48.19, 17.73, -49.25)
CIE-LCH	lch(48.19, 52.34, 289.80°)
OKLab	oklab(55.98% 0.0001 -0.1403)
OKLCH	oklch(55.98% 0.14 270)
XYZ	xyz(19.4046, 16.9443, 55.6632)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DC6 #C6AE55

analogous

#55A5C6 #556DC6 #7555C6

triadic

#556DC6 #C6556D #6DC655

tetradic

#556DC6 #C655A5 #C6AE55 #55C675

square

#556DC6 #C655A5 #C6AE55 #55C675

split-complementary

#556DC6 #C67555 #A5C655

monochromatic

#283978 #384FA6 #556DC6 #8394D5 #B1BCE5

Accessibility & contrast

On white

4.78

#556DC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#556DC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DC6

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DC6	#FFFFFF	#000000	##FFFFFF
##556DC6	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4578C9

Deuteranopia (green-blind)

#366EC4

Tritanopia (blue-blind)

#048190

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #556dc6;
/* rgb */ color: rgb(85, 109, 198);
/* oklch */ color: oklch(56.0% 0.140 270.0);

Tailwind

colors: {
  custom: {
    50: '#8e96d8',
    500: '#556dc6',
    950: '#000000',
  },
}

SCSS

$custom: #556dc6;
$custom-light: #8e96d8;
$custom-dark: #000000;

JSON

{
  "hex": "#556dc6",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 198
  },
  "hsl": {
    "h": 227.257,
    "s": 49.78,
    "l": 55.49
  },
  "oklch": {
    "l": 0.55982,
    "c": 0.14029,
    "h": 270
  },
  "luminance": 0.16946
}

Semantic roles & 50–950 ramp

primary

#556DC6

secondary

#D3C9A4

accent

#BC4ED9

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556DC6

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

Preview Lab → · Contrast checker → · Palette generator →