#556FD9#556FD9

#556FD9 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.6% C 0.164 H 270.2°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#556FD9
RGB	rgb(85, 111, 217)
HSL	hsl(228, 63%, 59%)
HSV	hsv(228, 61%, 85%)
CMYK	cmyk(60.8%, 48.8%, 0%, 14.9%)
CIE-LAB	lab(49.87, 22.85, -57.40)
CIE-LCH	lch(49.87, 61.78, 291.71°)
OKLab	oklab(57.63% 0.0005 -0.1642)
OKLCH	oklch(57.63% 0.164 270.2)
XYZ	xyz(21.9509, 18.3081, 68.0092)
Luminance	0.1831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FD9 #D9BF55

analogous

#55B1D9 #556FD9 #7D55D9

triadic

#556FD9 #D9556F #6FD955

tetradic

#556FD9 #D955B1 #D9BF55 #55D97D

square

#556FD9 #D955B1 #D9BF55 #55D97D

split-complementary

#556FD9 #D97D55 #B1D955

monochromatic

#213793 #2C4AC5 #556FD9 #8799E4 #B9C4EF

Accessibility & contrast

On white

4.50

#556FD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#556FD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556FD9

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FD9	#FFFFFF	#000000	##000000
##556FD9	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#387DDD

Deuteranopia (green-blind)

#1D71D7

Tritanopia (blue-blind)

#00879A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #556fd9;
/* rgb */ color: rgb(85, 111, 217);
/* oklch */ color: oklch(57.6% 0.164 270.2);

Tailwind

colors: {
  custom: {
    50: '#9098e5',
    500: '#556fd9',
    950: '#000000',
  },
}

SCSS

$custom: #556fd9;
$custom-light: #9098e5;
$custom-dark: #000000;

JSON

{
  "hex": "#556fd9",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 217
  },
  "hsl": {
    "h": 228.182,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.57629,
    "c": 0.16422,
    "h": 270.2
  },
  "luminance": 0.1831
}

Semantic roles & 50–950 ramp

primary

#556FD9

secondary

#DFD5AB

accent

#C641E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556FD9

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

Preview Lab → · Contrast checker → · Palette generator →