#556BF0#556BF0

#556BF0 is a mid, highly saturated blue. Relative luminance 0.187; OKLCH L 58.5% C 0.200 H 271.7°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#556BF0
RGB	rgb(85, 107, 240)
HSL	hsl(231, 84%, 64%)
HSV	hsv(231, 65%, 94%)
CMYK	cmyk(64.6%, 55.4%, 0%, 5.9%)
CIE-LAB	lab(50.38, 33.08, -69.52)
CIE-LCH	lch(50.38, 76.99, 295.45°)
OKLab	oklab(58.5% 0.0059 -0.1999)
OKLCH	oklch(58.5% 0.2 271.7)
XYZ	xyz(24.7269, 18.7357, 84.7345)
Luminance	0.1874 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BF0 #F0DA55

analogous

#55B8F0 #556BF0 #8C55F0

triadic

#556BF0 #F0556B #6BF055

tetradic

#556BF0 #F055B8 #F0DA55 #55F08C

square

#556BF0 #F055B8 #F0DA55 #55F08C

split-complementary

#556BF0 #F08C55 #B8F055

monochromatic

#1029BA #1D3AEB #556BF0 #8D9CF5 #C5CDFA

Accessibility & contrast

On white

4.42

#556BF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#556BF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556BF0

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BF0	#FFFFFF	#000000	##000000
##556BF0	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007FF5

Deuteranopia (green-blind)

#0071ED

Tritanopia (blue-blind)

#008BA3

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #556bf0;
/* rgb */ color: rgb(85, 107, 240);
/* oklch */ color: oklch(58.5% 0.200 271.7);

Tailwind

colors: {
  custom: {
    50: '#9495f6',
    500: '#556bf0',
    950: '#000000',
  },
}

SCSS

$custom: #556bf0;
$custom-light: #9495f6;
$custom-dark: #000000;

JSON

{
  "hex": "#556bf0",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 240
  },
  "hsl": {
    "h": 231.484,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.58498,
    "c": 0.20003,
    "h": 271.7
  },
  "luminance": 0.18738
}

Semantic roles & 50–950 ramp

primary

#556BF0

secondary

#ECE4B5

accent

#C105E0

background

#F9F9FF

surface

#F2F1FF

border

#CCCBD7

text

#0F0D17

muted

#7E7E85

Preview Lab

Preview with #556BF0

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

Preview Lab → · Contrast checker → · Palette generator →