#556ECD#556ECD

#556ECD is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.6% C 0.149 H 270.0°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#556ECD
RGB	rgb(85, 110, 205)
HSL	hsl(228, 55%, 57%)
HSV	hsv(228, 59%, 80%)
CMYK	cmyk(58.5%, 46.3%, 0%, 19.6%)
CIE-LAB	lab(48.87, 19.45, -52.17)
CIE-LCH	lch(48.87, 55.67, 290.44°)
OKLab	oklab(56.64% 0.0001 -0.1489)
OKLCH	oklch(56.64% 0.149 270)
XYZ	xyz(20.3380, 17.4893, 60.0498)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556ECD #CDB455

analogous

#55AACD #556ECD #7855CD

triadic

#556ECD #CD556E #6ECD55

tetradic

#556ECD #CD55AA #CDB455 #55CD78

square

#556ECD #CD55AA #CDB455 #55CD78

split-complementary

#556ECD #CD7855 #AACD55

monochromatic

#263982 #344EB1 #556ECD #8496DB #B4BFE9

Accessibility & contrast

On white

4.67

#556ECD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#556ECD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556ECD

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556ECD	#FFFFFF	#000000	##FFFFFF
##556ECD	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#417AD1

Deuteranopia (green-blind)

#2F6FCB

Tritanopia (blue-blind)

#008393

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556ecd;
/* rgb */ color: rgb(85, 110, 205);
/* oklch */ color: oklch(56.6% 0.149 270.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#556ecd",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 205
  },
  "hsl": {
    "h": 227.5,
    "s": 54.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.56635,
    "c": 0.14886,
    "h": 270
  },
  "luminance": 0.17491
}

Semantic roles & 50–950 ramp

primary

#556ECD

secondary

#D7CDA6

accent

#BF4ADE

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556ECD

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

Preview Lab → · Contrast checker → · Palette generator →