#556EF0#556EF0

#556EF0 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 59.1% C 0.196 H 271.0°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#556EF0
RGB	rgb(85, 110, 240)
HSL	hsl(230, 84%, 64%)
HSV	hsv(230, 65%, 94%)
CMYK	cmyk(64.6%, 54.2%, 0%, 5.9%)
CIE-LAB	lab(51.12, 31.24, -68.32)
CIE-LCH	lch(51.12, 75.12, 294.58°)
OKLab	oklab(59.06% 0.0033 -0.1964)
OKLCH	oklch(59.06% 0.196 271)
XYZ	xyz(25.0451, 19.3722, 84.8405)
Luminance	0.1937 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EF0 #F0D755

analogous

#55BBF0 #556EF0 #8955F0

triadic

#556EF0 #F0556E #6EF055

tetradic

#556EF0 #F055BB #F0D755 #55F089

square

#556EF0 #F055BB #F0D755 #55F089

split-complementary

#556EF0 #F08955 #BBF055

monochromatic

#102CBA #1D3EEB #556EF0 #8D9EF5 #C5CEFA

Accessibility & contrast

On white

4.31

#556EF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#556EF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556EF0

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EF0	#FFFFFF	#000000	##000000
##556EF0	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0081F4

Deuteranopia (green-blind)

#0073ED

Tritanopia (blue-blind)

#008DA4

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #556ef0;
/* rgb */ color: rgb(85, 110, 240);
/* oklch */ color: oklch(59.1% 0.196 271.0);

Tailwind

colors: {
  custom: {
    50: '#9497f6',
    500: '#556ef0',
    950: '#000000',
  },
}

SCSS

$custom: #556ef0;
$custom-light: #9497f6;
$custom-dark: #000000;

JSON

{
  "hex": "#556ef0",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 240
  },
  "hsl": {
    "h": 230.323,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.59055,
    "c": 0.19639,
    "h": 271
  },
  "luminance": 0.19374
}

Semantic roles & 50–950 ramp

primary

#556EF0

secondary

#ECE3B5

accent

#BD05E0

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0F0D17

muted

#7E7E85

Preview Lab

Preview with #556EF0

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

Preview Lab → · Contrast checker → · Palette generator →