#556CC7#556CC7

#556CC7 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.8% C 0.143 H 270.5°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#556CC7
RGB	rgb(85, 108, 199)
HSL	hsl(228, 50%, 56%)
HSV	hsv(228, 57%, 78%)
CMYK	cmyk(57.3%, 45.7%, 0%, 22%)
CIE-LAB	lab(47.98, 18.69, -50.16)
CIE-LCH	lch(47.98, 53.53, 290.44°)
OKLab	oklab(55.84% 0.0013 -0.143)
OKLCH	oklch(55.84% 0.143 270.5)
XYZ	xyz(19.4143, 16.7785, 56.2373)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CC7 #C7B055

analogous

#55A5C7 #556CC7 #7755C7

triadic

#556CC7 #C7556C #6CC755

tetradic

#556CC7 #C755A5 #C7B055 #55C777

square

#556CC7 #C755A5 #C7B055 #55C777

split-complementary

#556CC7 #C77755 #A5C755

monochromatic

#28387A #374EA8 #556CC7 #8394D6 #B1BCE5

Accessibility & contrast

On white

4.82

#556CC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#556CC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556CC7

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CC7	#FFFFFF	#000000	##FFFFFF
##556CC7	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4277CA

Deuteranopia (green-blind)

#326DC5

Tritanopia (blue-blind)

#018090

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #556cc7;
/* rgb */ color: rgb(85, 108, 199);
/* oklch */ color: oklch(55.8% 0.143 270.5);

Tailwind

colors: {
  custom: {
    50: '#8e95d8',
    500: '#556cc7',
    950: '#000000',
  },
}

SCSS

$custom: #556cc7;
$custom-light: #8e95d8;
$custom-dark: #000000;

JSON

{
  "hex": "#556cc7",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 199
  },
  "hsl": {
    "h": 227.895,
    "s": 50.442,
    "l": 55.686
  },
  "oklch": {
    "l": 0.5584,
    "c": 0.14298,
    "h": 270.5
  },
  "luminance": 0.1678
}

Semantic roles & 50–950 ramp

primary

#556CC7

secondary

#D4CAA4

accent

#BE4EDA

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556CC7

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

Preview Lab → · Contrast checker → · Palette generator →