#556CF0#556CF0

#556CF0 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.7% C 0.199 H 271.4°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#556CF0
RGB	rgb(85, 108, 240)
HSL	hsl(231, 84%, 64%)
HSV	hsv(231, 65%, 94%)
CMYK	cmyk(64.6%, 55%, 0%, 5.9%)
CIE-LAB	lab(50.62, 32.47, -69.12)
CIE-LCH	lch(50.62, 76.37, 295.16°)
OKLab	oklab(58.68% 0.005 -0.1987)
OKLCH	oklch(58.68% 0.199 271.4)
XYZ	xyz(24.8318, 18.9455, 84.7694)
Luminance	0.1895 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CF0 #F0D955

analogous

#55B9F0 #556CF0 #8B55F0

triadic

#556CF0 #F0556C #6CF055

tetradic

#556CF0 #F055B9 #F0D955 #55F08B

square

#556CF0 #F055B9 #F0D955 #55F08B

split-complementary

#556CF0 #F08B55 #B9F055

monochromatic

#102ABA #1D3BEB #556CF0 #8D9DF5 #C5CDFA

Accessibility & contrast

On white

4.38

#556CF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#556CF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556CF0

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CF0	#FFFFFF	#000000	##000000
##556CF0	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0080F5

Deuteranopia (green-blind)

#0072ED

Tritanopia (blue-blind)

#008CA4

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #556cf0;
/* rgb */ color: rgb(85, 108, 240);
/* oklch */ color: oklch(58.7% 0.199 271.4);

Tailwind

colors: {
  custom: {
    50: '#9495f6',
    500: '#556cf0',
    950: '#000000',
  },
}

SCSS

$custom: #556cf0;
$custom-light: #9495f6;
$custom-dark: #000000;

JSON

{
  "hex": "#556cf0",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 240
  },
  "hsl": {
    "h": 231.097,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.58683,
    "c": 0.19881,
    "h": 271.4
  },
  "luminance": 0.18948
}

Semantic roles & 50–950 ramp

primary

#556CF0

secondary

#ECE4B5

accent

#C005E0

background

#F9F9FF

surface

#F2F1FF

border

#CCCBD7

text

#0F0D17

muted

#7E7E85

Preview Lab

Preview with #556CF0

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

Preview Lab → · Contrast checker → · Palette generator →