#556DD5#556DD5

#556DD5 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.0% C 0.161 H 270.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#556DD5
RGB	rgb(85, 109, 213)
HSL	hsl(229, 60%, 58%)
HSV	hsv(229, 60%, 84%)
CMYK	cmyk(60.1%, 48.8%, 0%, 16.5%)
CIE-LAB	lab(49.09, 22.75, -56.37)
CIE-LCH	lch(49.09, 60.79, 291.98°)
OKLab	oklab(56.96% 0.0021 -0.1612)
OKLCH	oklch(56.96% 0.161 270.7)
XYZ	xyz(21.2212, 17.6709, 65.2304)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DD5 #D5BD55

analogous

#55ADD5 #556DD5 #7D55D5

triadic

#556DD5 #D5556D #6DD555

tetradic

#556DD5 #D555AD #D5BD55 #55D57D

square

#556DD5 #D555AD #D5BD55 #55D57D

split-complementary

#556DD5 #D57D55 #ADD555

monochromatic

#23378D #2F4ABE #556DD5 #8697E1 #B7C1ED

Accessibility & contrast

On white

4.63

#556DD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#556DD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556DD5

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DD5	#FFFFFF	#000000	##FFFFFF
##556DD5	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#377BD9

Deuteranopia (green-blind)

#1E6FD3

Tritanopia (blue-blind)

#008597

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556dd5;
/* rgb */ color: rgb(85, 109, 213);
/* oklch */ color: oklch(57.0% 0.161 270.7);

Tailwind

colors: {
  custom: {
    50: '#9096e2',
    500: '#556dd5',
    950: '#000000',
  },
}

SCSS

$custom: #556dd5;
$custom-light: #9096e2;
$custom-dark: #000000;

JSON

{
  "hex": "#556dd5",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 213
  },
  "hsl": {
    "h": 228.75,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.56962,
    "c": 0.16123,
    "h": 270.7
  },
  "luminance": 0.17673
}

Semantic roles & 50–950 ramp

primary

#556DD5

secondary

#DCD3A9

accent

#C644E4

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #556DD5

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

Preview Lab → · Contrast checker → · Palette generator →