#556BC1#556BC1

#556BC1 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.3% C 0.136 H 270.6°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#556BC1
RGB	rgb(85, 107, 193)
HSL	hsl(228, 47%, 55%)
HSV	hsv(228, 56%, 76%)
CMYK	cmyk(56%, 44.6%, 0%, 24.3%)
CIE-LAB	lab(47.36, 17.32, -47.69)
CIE-LCH	lch(47.36, 50.74, 289.96°)
OKLab	oklab(55.25% 0.0015 -0.1357)
OKLCH	oklch(55.25% 0.136 270.6)
XYZ	xyz(18.6265, 16.2956, 52.6056)
Luminance	0.1630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BC1 #C1AB55

analogous

#55A1C1 #556BC1 #7555C1

triadic

#556BC1 #C1556B #6BC155

tetradic

#556BC1 #C155A1 #C1AB55 #55C175

square

#556BC1 #C155A1 #C1AB55 #55C175

split-complementary

#556BC1 #C17555 #A1C155

monochromatic

#2A3872 #3A4E9F #556BC1 #8292D1 #AFB9E2

Accessibility & contrast

On white

4.93

#556BC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#556BC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BC1

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BC1	#FFFFFF	#000000	##FFFFFF
##556BC1	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4575C4

Deuteranopia (green-blind)

#376CBF

Tritanopia (blue-blind)

#157E8C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556bc1;
/* rgb */ color: rgb(85, 107, 193);
/* oklch */ color: oklch(55.3% 0.136 270.6);

Tailwind

colors: {
  custom: {
    50: '#8d95d4',
    500: '#556bc1',
    950: '#000000',
  },
}

SCSS

$custom: #556bc1;
$custom-light: #8d95d4;
$custom-dark: #000000;

JSON

{
  "hex": "#556bc1",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 193
  },
  "hsl": {
    "h": 227.778,
    "s": 46.552,
    "l": 54.51
  },
  "oklch": {
    "l": 0.55254,
    "c": 0.13576,
    "h": 270.6
  },
  "luminance": 0.16297
}

Semantic roles & 50–950 ramp

primary

#556BC1

secondary

#D0C6A2

accent

#BB52D6

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556BC1

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

Preview Lab → · Contrast checker → · Palette generator →