#556FB7#556FB7

#556FB7 is a mid, moderate blue. Relative luminance 0.167; OKLCH L 55.5% C 0.116 H 267.5°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#556FB7
RGB	rgb(85, 111, 183)
HSL	hsl(224, 40%, 53%)
HSV	hsv(224, 54%, 72%)
CMYK	cmyk(53.6%, 39.3%, 0%, 28.2%)
CIE-LAB	lab(47.90, 11.56, -41.05)
CIE-LCH	lch(47.90, 42.65, 285.73°)
OKLab	oklab(55.49% -0.005 -0.1162)
OKLCH	oklch(55.49% 0.116 267.5)
XYZ	xyz(17.9752, 16.7178, 47.0702)
Luminance	0.1672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FB7 #B79D55

analogous

#55A0B7 #556FB7 #6C55B7

triadic

#556FB7 #B7556F #6FB755

tetradic

#556FB7 #B755A0 #B79D55 #55B76C

square

#556FB7 #B755A0 #B79D55 #55B76C

split-complementary

#556FB7 #B76C55 #A0B755

monochromatic

#2B3B66 #3E5491 #556FB7 #8093C9 #ABB8DB

Accessibility & contrast

On white

4.83

#556FB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#556FB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556FB7

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FB7	#FFFFFF	#000000	##FFFFFF
##556FB7	1.00	4.83	4.34	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5276BA

Deuteranopia (green-blind)

#476EB5

Tritanopia (blue-blind)

#237F8A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #556fb7;
/* rgb */ color: rgb(85, 111, 183);
/* oklch */ color: oklch(55.5% 0.116 267.5);

Tailwind

colors: {
  custom: {
    50: '#8b98cd',
    500: '#556fb7',
    950: '#000000',
  },
}

SCSS

$custom: #556fb7;
$custom-light: #8b98cd;
$custom-dark: #000000;

JSON

{
  "hex": "#556fb7",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 183
  },
  "hsl": {
    "h": 224.082,
    "s": 40.496,
    "l": 52.549
  },
  "oklch": {
    "l": 0.5549,
    "c": 0.11636,
    "h": 267.5
  },
  "luminance": 0.16719
}

Semantic roles & 50–950 ramp

primary

#556FB7

secondary

#C9BE9F

accent

#B057D0

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556FB7

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

Preview Lab → · Contrast checker → · Palette generator →