#556DCE#556DCE

#556DCE is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.5% C 0.152 H 270.5°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#556DCE
RGB	rgb(85, 109, 206)
HSL	hsl(228, 55%, 57%)
HSV	hsv(228, 59%, 81%)
CMYK	cmyk(58.7%, 47.1%, 0%, 19.2%)
CIE-LAB	lab(48.66, 20.40, -53.07)
CIE-LCH	lch(48.66, 56.86, 291.03°)
OKLab	oklab(56.5% 0.0012 -0.1515)
OKLCH	oklch(56.5% 0.152 270.5)
XYZ	xyz(20.3518, 17.3232, 60.6518)
Luminance	0.1732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DCE #CEB655

analogous

#55AACE #556DCE #7A55CE

triadic

#556DCE #CE556D #6DCE55

tetradic

#556DCE #CE55AA #CEB655 #55CE7A

square

#556DCE #CE55AA #CEB655 #55CE7A

split-complementary

#556DCE #CE7A55 #AACE55

monochromatic

#263883 #334DB2 #556DCE #8596DC #B4BFE9

Accessibility & contrast

On white

4.70

#556DCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#556DCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DCE

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DCE	#FFFFFF	#000000	##FFFFFF
##556DCE	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E79D2

Deuteranopia (green-blind)

#2B6FCC

Tritanopia (blue-blind)

#008393

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556dce;
/* rgb */ color: rgb(85, 109, 206);
/* oklch */ color: oklch(56.5% 0.152 270.5);

Tailwind

colors: {
  custom: {
    50: '#8f96dd',
    500: '#556dce',
    950: '#000000',
  },
}

SCSS

$custom: #556dce;
$custom-light: #8f96dd;
$custom-dark: #000000;

JSON

{
  "hex": "#556dce",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 206
  },
  "hsl": {
    "h": 228.099,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.56497,
    "c": 0.15153,
    "h": 270.5
  },
  "luminance": 0.17325
}

Semantic roles & 50–950 ramp

primary

#556DCE

secondary

#D8CEA7

accent

#C149DF

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556DCE

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

Preview Lab → · Contrast checker → · Palette generator →