#556EE3#556EE3

#556EE3 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.1% C 0.179 H 270.8°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#556EE3
RGB	rgb(85, 110, 227)
HSL	hsl(229, 72%, 61%)
HSV	hsv(229, 63%, 89%)
CMYK	cmyk(62.6%, 51.5%, 0%, 11%)
CIE-LAB	lab(50.25, 26.85, -62.43)
CIE-LCH	lch(50.25, 67.96, 293.27°)
OKLab	oklab(58.12% 0.0025 -0.179)
OKLCH	oklch(58.12% 0.179 270.8)
XYZ	xyz(23.1827, 18.6272, 75.0319)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EE3 #E3CA55

analogous

#55B5E3 #556EE3 #8355E3

triadic

#556EE3 #E3556E #6EE355

tetradic

#556EE3 #E355B5 #E3CA55 #55E383

square

#556EE3 #E355B5 #E3CA55 #55E383

split-complementary

#556EE3 #E38355 #B5E355

monochromatic

#1B33A3 #2343D7 #556EE3 #8A9BEC #BEC8F4

Accessibility & contrast

On white

4.44

#556EE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#556EE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556EE3

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EE3	#FFFFFF	#000000	##000000
##556EE3	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#277EE7

Deuteranopia (green-blind)

#0072E1

Tritanopia (blue-blind)

#00899E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #556ee3;
/* rgb */ color: rgb(85, 110, 227);
/* oklch */ color: oklch(58.1% 0.179 270.8);

Tailwind

colors: {
  custom: {
    50: '#9297ec',
    500: '#556ee3',
    950: '#000000',
  },
}

SCSS

$custom: #556ee3;
$custom-light: #9297ec;
$custom-dark: #000000;

JSON

{
  "hex": "#556ee3",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 227
  },
  "hsl": {
    "h": 229.437,
    "s": 71.717,
    "l": 61.176
  },
  "oklch": {
    "l": 0.58122,
    "c": 0.17907,
    "h": 270.8
  },
  "luminance": 0.18629
}

Semantic roles & 50–950 ramp

primary

#556EE3

secondary

#E5DBAF

accent

#B212D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556EE3

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

Preview Lab → · Contrast checker → · Palette generator →