#556FE3#556FE3

#556FE3 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.3% C 0.178 H 270.5°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#556FE3
RGB	rgb(85, 111, 227)
HSL	hsl(229, 72%, 61%)
HSV	hsv(229, 63%, 89%)
CMYK	cmyk(62.6%, 51.1%, 0%, 11%)
CIE-LAB	lab(50.50, 26.23, -62.02)
CIE-LCH	lch(50.50, 67.34, 292.92°)
OKLab	oklab(58.32% 0.0015 -0.1778)
OKLCH	oklch(58.32% 0.178 270.5)
XYZ	xyz(23.2912, 18.8442, 75.0680)
Luminance	0.1885 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FE3 #E3C955

analogous

#55B6E3 #556FE3 #8255E3

triadic

#556FE3 #E3556F #6FE355

tetradic

#556FE3 #E355B6 #E3C955 #55E382

square

#556FE3 #E355B6 #E3C955 #55E382

split-complementary

#556FE3 #E38255 #B6E355

monochromatic

#1B34A3 #2344D7 #556FE3 #8A9CEC #BEC8F4

Accessibility & contrast

On white

4.40

#556FE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#556FE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556FE3

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FE3	#FFFFFF	#000000	##000000
##556FE3	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7FE7

Deuteranopia (green-blind)

#0072E1

Tritanopia (blue-blind)

#008A9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #556fe3;
/* rgb */ color: rgb(85, 111, 227);
/* oklch */ color: oklch(58.3% 0.178 270.5);

Tailwind

colors: {
  custom: {
    50: '#9298ec',
    500: '#556fe3',
    950: '#000000',
  },
}

SCSS

$custom: #556fe3;
$custom-light: #9298ec;
$custom-dark: #000000;

JSON

{
  "hex": "#556fe3",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 227
  },
  "hsl": {
    "h": 229.014,
    "s": 71.717,
    "l": 61.176
  },
  "oklch": {
    "l": 0.58315,
    "c": 0.17784,
    "h": 270.5
  },
  "luminance": 0.18846
}

Semantic roles & 50–950 ramp

primary

#556FE3

secondary

#E5DBAF

accent

#B012D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556FE3

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

Preview Lab → · Contrast checker → · Palette generator →