#556EC7#556EC7

#556EC7 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.3% C 0.140 H 269.7°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#556EC7
RGB	rgb(85, 110, 199)
HSL	hsl(227, 50%, 56%)
HSV	hsv(227, 57%, 78%)
CMYK	cmyk(57.3%, 44.7%, 0%, 22%)
CIE-LAB	lab(48.52, 17.44, -49.30)
CIE-LCH	lch(48.52, 52.29, 289.49°)
OKLab	oklab(56.25% -0.0008 -0.1404)
OKLCH	oklch(56.25% 0.14 269.7)
XYZ	xyz(19.6276, 17.2052, 56.3084)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EC7 #C7AE55

analogous

#55A7C7 #556EC7 #7555C7

triadic

#556EC7 #C7556E #6EC755

tetradic

#556EC7 #C755A7 #C7AE55 #55C775

square

#556EC7 #C755A7 #C7AE55 #55C775

split-complementary

#556EC7 #C77555 #A7C755

monochromatic

#283A7A #3750A8 #556EC7 #8395D6 #B1BDE5

Accessibility & contrast

On white

4.73

#556EC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#556EC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556EC7

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EC7	#FFFFFF	#000000	##FFFFFF
##556EC7	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4679CA

Deuteranopia (green-blind)

#366EC5

Tritanopia (blue-blind)

#008291

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556ec7;
/* rgb */ color: rgb(85, 110, 199);
/* oklch */ color: oklch(56.3% 0.140 269.7);

Tailwind

colors: {
  custom: {
    50: '#8e97d8',
    500: '#556ec7',
    950: '#000000',
  },
}

SCSS

$custom: #556ec7;
$custom-light: #8e97d8;
$custom-dark: #000000;

JSON

{
  "hex": "#556ec7",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 199
  },
  "hsl": {
    "h": 226.842,
    "s": 50.442,
    "l": 55.686
  },
  "oklch": {
    "l": 0.56251,
    "c": 0.14043,
    "h": 269.7
  },
  "luminance": 0.17207
}

Semantic roles & 50–950 ramp

primary

#556EC7

secondary

#D4C9A4

accent

#BB4EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556EC7

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

Preview Lab → · Contrast checker → · Palette generator →