#556DD2#556DD2

#556DD2 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.8% C 0.157 H 270.6°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#556DD2
RGB	rgb(85, 109, 210)
HSL	hsl(228, 58%, 58%)
HSV	hsv(228, 60%, 82%)
CMYK	cmyk(59.5%, 48.1%, 0%, 17.6%)
CIE-LAB	lab(48.91, 21.74, -54.96)
CIE-LCH	lch(48.91, 59.10, 291.58°)
OKLab	oklab(56.76% 0.0017 -0.1571)
OKLCH	oklch(56.76% 0.157 270.6)
XYZ	xyz(20.8439, 17.5200, 63.2436)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DD2 #D2BA55

analogous

#55ABD2 #556DD2 #7B55D2

triadic

#556DD2 #D2556D #6DD255

tetradic

#556DD2 #D255AB #D2BA55 #55D27B

square

#556DD2 #D255AB #D2BA55 #55D27B

split-complementary

#556DD2 #D27B55 #ABD255

monochromatic

#243788 #314BB9 #556DD2 #8597DF #B6C0EC

Accessibility & contrast

On white

4.66

#556DD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#556DD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556DD2

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DD2	#FFFFFF	#000000	##FFFFFF
##556DD2	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7AD6

Deuteranopia (green-blind)

#246FD0

Tritanopia (blue-blind)

#008495

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556dd2;
/* rgb */ color: rgb(85, 109, 210);
/* oklch */ color: oklch(56.8% 0.157 270.6);

Tailwind

colors: {
  custom: {
    50: '#8f96e0',
    500: '#556dd2',
    950: '#000000',
  },
}

SCSS

$custom: #556dd2;
$custom-light: #8f96e0;
$custom-dark: #000000;

JSON

{
  "hex": "#556dd2",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 210
  },
  "hsl": {
    "h": 228.48,
    "s": 58.14,
    "l": 57.843
  },
  "oklch": {
    "l": 0.56762,
    "c": 0.15709,
    "h": 270.6
  },
  "luminance": 0.17522
}

Semantic roles & 50–950 ramp

primary

#556DD2

secondary

#DAD1A8

accent

#C446E1

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556DD2

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

Preview Lab → · Contrast checker → · Palette generator →