#556ECE#556ECE

#556ECE is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.7% C 0.150 H 270.1°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#556ECE
RGB	rgb(85, 110, 206)
HSL	hsl(228, 55%, 57%)
HSV	hsv(228, 59%, 81%)
CMYK	cmyk(58.7%, 46.6%, 0%, 19.2%)
CIE-LAB	lab(48.93, 19.78, -52.64)
CIE-LCH	lch(48.93, 56.24, 290.59°)
OKLab	oklab(56.7% 0.0002 -0.1503)
OKLCH	oklch(56.7% 0.15 270.1)
XYZ	xyz(20.4591, 17.5378, 60.6875)
Luminance	0.1754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556ECE #CEB555

analogous

#55ABCE #556ECE #7955CE

triadic

#556ECE #CE556E #6ECE55

tetradic

#556ECE #CE55AB #CEB555 #55CE79

square

#556ECE #CE55AB #CEB555 #55CE79

split-complementary

#556ECE #CE7955 #ABCE55

monochromatic

#263983 #334EB2 #556ECE #8597DC #B4BFE9

Accessibility & contrast

On white

4.66

#556ECE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#556ECE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556ECE

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556ECE	#FFFFFF	#000000	##FFFFFF
##556ECE	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407AD2

Deuteranopia (green-blind)

#2E6FCC

Tritanopia (blue-blind)

#008494

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556ece;
/* rgb */ color: rgb(85, 110, 206);
/* oklch */ color: oklch(56.7% 0.150 270.1);

Tailwind

colors: {
  custom: {
    50: '#8f97dd',
    500: '#556ece',
    950: '#000000',
  },
}

SCSS

$custom: #556ece;
$custom-light: #8f97dd;
$custom-dark: #000000;

JSON

{
  "hex": "#556ece",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 206
  },
  "hsl": {
    "h": 227.603,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.567,
    "c": 0.15026,
    "h": 270.1
  },
  "luminance": 0.17539
}

Semantic roles & 50–950 ramp

primary

#556ECE

secondary

#D8CEA7

accent

#C049DF

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556ECE

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

Preview Lab → · Contrast checker → · Palette generator →