#556DD9#556DD9

#556DD9 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.2% C 0.167 H 270.9°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#556DD9
RGB	rgb(85, 109, 217)
HSL	hsl(229, 63%, 59%)
HSV	hsv(229, 61%, 85%)
CMYK	cmyk(60.8%, 49.8%, 0%, 14.9%)
CIE-LAB	lab(49.35, 24.09, -58.24)
CIE-LCH	lch(49.35, 63.02, 292.48°)
OKLab	oklab(57.23% 0.0025 -0.1667)
OKLCH	oklch(57.23% 0.167 270.9)
XYZ	xyz(21.7351, 17.8765, 67.9373)
Luminance	0.1788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DD9 #D9C155

analogous

#55AFD9 #556DD9 #7F55D9

triadic

#556DD9 #D9556D #6DD955

tetradic

#556DD9 #D955AF #D9C155 #55D97F

square

#556DD9 #D955AF #D9C155 #55D97F

split-complementary

#556DD9 #D97F55 #AFD955

monochromatic

#213693 #2C48C5 #556DD9 #8798E4 #B9C3EF

Accessibility & contrast

On white

4.59

#556DD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#556DD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556DD9

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DD9	#FFFFFF	#000000	##FFFFFF
##556DD9	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#337BDD

Deuteranopia (green-blind)

#1470D7

Tritanopia (blue-blind)

#008699

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556dd9;
/* rgb */ color: rgb(85, 109, 217);
/* oklch */ color: oklch(57.2% 0.167 270.9);

Tailwind

colors: {
  custom: {
    50: '#9096e5',
    500: '#556dd9',
    950: '#000000',
  },
}

SCSS

$custom: #556dd9;
$custom-light: #9096e5;
$custom-dark: #000000;

JSON

{
  "hex": "#556dd9",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 217
  },
  "hsl": {
    "h": 229.091,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.57234,
    "c": 0.16674,
    "h": 270.9
  },
  "luminance": 0.17878
}

Semantic roles & 50–950 ramp

primary

#556DD9

secondary

#DFD5AB

accent

#C841E6

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556DD9

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

Preview Lab → · Contrast checker → · Palette generator →