#556ECC#556ECC

#556ECC is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.6% C 0.147 H 270.0°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#556ECC
RGB	rgb(85, 110, 204)
HSL	hsl(227, 54%, 57%)
HSV	hsv(227, 58%, 80%)
CMYK	cmyk(58.3%, 46.1%, 0%, 20%)
CIE-LAB	lab(48.81, 19.11, -51.69)
CIE-LCH	lch(48.81, 55.11, 290.29°)
OKLab	oklab(56.57% -0.0001 -0.1475)
OKLCH	oklch(56.57% 0.147 270)
XYZ	xyz(20.2177, 17.4412, 59.4161)
Luminance	0.1744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556ECC #CCB355

analogous

#55AACC #556ECC #7855CC

triadic

#556ECC #CC556E #6ECC55

tetradic

#556ECC #CC55AA #CCB355 #55CC78

square

#556ECC #CC55AA #CCB355 #55CC78

split-complementary

#556ECC #CC7855 #AACC55

monochromatic

#263980 #354EAF #556ECC #8496DA #B3BEE8

Accessibility & contrast

On white

4.68

#556ECC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#556ECC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556ECC

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556ECC	#FFFFFF	#000000	##FFFFFF
##556ECC	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#427AD0

Deuteranopia (green-blind)

#306FCA

Tritanopia (blue-blind)

#008393

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556ecc;
/* rgb */ color: rgb(85, 110, 204);
/* oklch */ color: oklch(56.6% 0.147 270.0);

Tailwind

colors: {
  custom: {
    50: '#8e97dc',
    500: '#556ecc',
    950: '#000000',
  },
}

SCSS

$custom: #556ecc;
$custom-light: #8e97dc;
$custom-dark: #000000;

JSON

{
  "hex": "#556ecc",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 204
  },
  "hsl": {
    "h": 227.395,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.5657,
    "c": 0.14746,
    "h": 270
  },
  "luminance": 0.17443
}

Semantic roles & 50–950 ramp

primary

#556ECC

secondary

#D7CDA6

accent

#BE4BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556ECC

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

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