#556BC0#556BC0

#556BC0 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.2% C 0.134 H 270.6°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#556BC0
RGB	rgb(85, 107, 192)
HSL	hsl(228, 46%, 54%)
HSV	hsv(228, 56%, 75%)
CMYK	cmyk(55.7%, 44.3%, 0%, 24.7%)
CIE-LAB	lab(47.30, 16.99, -47.21)
CIE-LCH	lch(47.30, 50.17, 289.80°)
OKLab	oklab(55.19% 0.0013 -0.1343)
OKLCH	oklch(55.19% 0.134 270.6)
XYZ	xyz(18.5153, 16.2511, 52.0200)
Luminance	0.1625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BC0 #C0AA55

analogous

#55A0C0 #556BC0 #7555C0

triadic

#556BC0 #C0556B #6BC055

tetradic

#556BC0 #C055A0 #C0AA55 #55C075

square

#556BC0 #C055A0 #C0AA55 #55C075

split-complementary

#556BC0 #C07555 #A0C055

monochromatic

#2A3871 #3A4F9D #556BC0 #8292D1 #AEB9E1

Accessibility & contrast

On white

4.94

#556BC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#556BC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BC0

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BC0	#FFFFFF	#000000	##FFFFFF
##556BC0	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4675C3

Deuteranopia (green-blind)

#386CBE

Tritanopia (blue-blind)

#177E8C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556bc0;
/* rgb */ color: rgb(85, 107, 192);
/* oklch */ color: oklch(55.2% 0.134 270.6);

Tailwind

colors: {
  custom: {
    50: '#8d95d3',
    500: '#556bc0',
    950: '#000000',
  },
}

SCSS

$custom: #556bc0;
$custom-light: #8d95d3;
$custom-dark: #000000;

JSON

{
  "hex": "#556bc0",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 192
  },
  "hsl": {
    "h": 227.664,
    "s": 45.923,
    "l": 54.314
  },
  "oklch": {
    "l": 0.55191,
    "c": 0.13434,
    "h": 270.6
  },
  "luminance": 0.16252
}

Semantic roles & 50–950 ramp

primary

#556BC0

secondary

#CFC6A2

accent

#BB52D6

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556BC0

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

Preview Lab → · Contrast checker → · Palette generator →