#556FD5#556FD5

#556FD5 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.4% C 0.159 H 270.0°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#556FD5
RGB	rgb(85, 111, 213)
HSL	hsl(228, 60%, 58%)
HSV	hsv(228, 60%, 84%)
CMYK	cmyk(60.1%, 47.9%, 0%, 16.5%)
CIE-LAB	lab(49.62, 21.51, -55.52)
CIE-LCH	lch(49.62, 59.54, 291.17°)
OKLab	oklab(57.36% 0.0001 -0.1587)
OKLCH	oklch(57.36% 0.159 270)
XYZ	xyz(21.4370, 18.1025, 65.3023)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FD5 #D5BB55

analogous

#55AFD5 #556FD5 #7B55D5

triadic

#556FD5 #D5556F #6FD555

tetradic

#556FD5 #D555AF #D5BB55 #55D57B

square

#556FD5 #D555AF #D5BB55 #55D57B

split-complementary

#556FD5 #D57B55 #AFD555

monochromatic

#23388D #2F4CBE #556FD5 #8699E1 #B7C2ED

Accessibility & contrast

On white

4.54

#556FD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#556FD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556FD5

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FD5	#FFFFFF	#000000	##000000
##556FD5	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7CD9

Deuteranopia (green-blind)

#2571D3

Tritanopia (blue-blind)

#008698

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #556fd5;
/* rgb */ color: rgb(85, 111, 213);
/* oklch */ color: oklch(57.4% 0.159 270.0);

Tailwind

colors: {
  custom: {
    50: '#9098e2',
    500: '#556fd5',
    950: '#000000',
  },
}

SCSS

$custom: #556fd5;
$custom-light: #9098e2;
$custom-dark: #000000;

JSON

{
  "hex": "#556fd5",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 213
  },
  "hsl": {
    "h": 227.813,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.57362,
    "c": 0.15872,
    "h": 270
  },
  "luminance": 0.18104
}

Semantic roles & 50–950 ramp

primary

#556FD5

secondary

#DCD2A9

accent

#C344E4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #556FD5

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

Preview Lab → · Contrast checker → · Palette generator →