#556DD0#556DD0

#556DD0 is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.6% C 0.154 H 270.6°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#556DD0
RGB	rgb(85, 109, 208)
HSL	hsl(228, 57%, 57%)
HSV	hsv(228, 59%, 82%)
CMYK	cmyk(59.1%, 47.6%, 0%, 18.4%)
CIE-LAB	lab(48.79, 21.07, -54.02)
CIE-LCH	lch(48.79, 57.98, 291.31°)
OKLab	oklab(56.63% 0.0015 -0.1543)
OKLCH	oklch(56.63% 0.154 270.6)
XYZ	xyz(20.5963, 17.4210, 61.9395)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DD0 #D0B855

analogous

#55AAD0 #556DD0 #7B55D0

triadic

#556DD0 #D0556D #6DD055

tetradic

#556DD0 #D055AA #D0B855 #55D07B

square

#556DD0 #D055AA #D0B855 #55D07B

split-complementary

#556DD0 #D07B55 #AAD055

monochromatic

#253886 #324CB6 #556DD0 #8596DD #B5BFEB

Accessibility & contrast

On white

4.68

#556DD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#556DD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DD0

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DD0	#FFFFFF	#000000	##FFFFFF
##556DD0	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7AD4

Deuteranopia (green-blind)

#286FCE

Tritanopia (blue-blind)

#008394

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556dd0;
/* rgb */ color: rgb(85, 109, 208);
/* oklch */ color: oklch(56.6% 0.154 270.6);

Tailwind

colors: {
  custom: {
    50: '#8f96df',
    500: '#556dd0',
    950: '#000000',
  },
}

SCSS

$custom: #556dd0;
$custom-light: #8f96df;
$custom-dark: #000000;

JSON

{
  "hex": "#556dd0",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 208
  },
  "hsl": {
    "h": 228.293,
    "s": 56.682,
    "l": 57.451
  },
  "oklch": {
    "l": 0.56629,
    "c": 0.15431,
    "h": 270.6
  },
  "luminance": 0.17423
}

Semantic roles & 50–950 ramp

primary

#556DD0

secondary

#D9D0A8

accent

#C248E0

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556DD0

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

Preview Lab → · Contrast checker → · Palette generator →