#556EE4#556EE4

#556EE4 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.2% C 0.180 H 270.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#556EE4
RGB	rgb(85, 110, 228)
HSL	hsl(230, 73%, 61%)
HSV	hsv(230, 63%, 89%)
CMYK	cmyk(62.7%, 51.8%, 0%, 10.6%)
CIE-LAB	lab(50.31, 27.19, -62.89)
CIE-LCH	lch(50.31, 68.52, 293.38°)
OKLab	oklab(58.19% 0.0025 -0.1804)
OKLCH	oklch(58.19% 0.18 270.8)
XYZ	xyz(23.3211, 18.6826, 75.7609)
Luminance	0.1868 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EE4 #E4CB55

analogous

#55B6E4 #556EE4 #8455E4

triadic

#556EE4 #E4556E #6EE455

tetradic

#556EE4 #E455B6 #E4CB55 #55E484

square

#556EE4 #E455B6 #E4CB55 #55E484

split-complementary

#556EE4 #E48455 #B6E455

monochromatic

#1A32A4 #2342D9 #556EE4 #8A9BEC #BFC8F5

Accessibility & contrast

On white

4.43

#556EE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#556EE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556EE4

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EE4	#FFFFFF	#000000	##000000
##556EE4	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#267EE8

Deuteranopia (green-blind)

#0072E2

Tritanopia (blue-blind)

#008A9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #556ee4;
/* rgb */ color: rgb(85, 110, 228);
/* oklch */ color: oklch(58.2% 0.180 270.8);

Tailwind

colors: {
  custom: {
    50: '#9297ed',
    500: '#556ee4',
    950: '#000000',
  },
}

SCSS

$custom: #556ee4;
$custom-light: #9297ed;
$custom-dark: #000000;

JSON

{
  "hex": "#556ee4",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 228
  },
  "hsl": {
    "h": 229.51,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.58192,
    "c": 0.18042,
    "h": 270.8
  },
  "luminance": 0.18685
}

Semantic roles & 50–950 ramp

primary

#556EE4

secondary

#E5DCB0

accent

#B211D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556EE4

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

Preview Lab → · Contrast checker → · Palette generator →