#556BDA#556BDA

#556BDA is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.9% C 0.171 H 271.5°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#556BDA
RGB	rgb(85, 107, 218)
HSL	hsl(230, 64%, 59%)
HSV	hsv(230, 61%, 85%)
CMYK	cmyk(61%, 50.9%, 0%, 14.5%)
CIE-LAB	lab(48.89, 25.67, -59.53)
CIE-LCH	lch(48.89, 64.83, 293.33°)
OKLab	oklab(56.91% 0.0046 -0.1706)
OKLCH	oklch(56.91% 0.171 271.5)
XYZ	xyz(21.6547, 17.5068, 68.5541)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BDA #DAC455

analogous

#55AEDA #556BDA #8255DA

triadic

#556BDA #DA556B #6BDA55

tetradic

#556BDA #DA55AE #DAC455 #55DA82

square

#556BDA #DA55AE #DAC455 #55DA82

split-complementary

#556BDA #DA8255 #AEDA55

monochromatic

#203394 #2B45C7 #556BDA #8797E5 #BAC3F0

Accessibility & contrast

On white

4.66

#556BDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#556BDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556BDA

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BDA	#FFFFFF	#000000	##FFFFFF
##556BDA	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)

#2C7ADE

Deuteranopia (green-blind)

#006FD8

Tritanopia (blue-blind)

#008598

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556bda;
/* rgb */ color: rgb(85, 107, 218);
/* oklch */ color: oklch(56.9% 0.171 271.5);

Tailwind

colors: {
  custom: {
    50: '#9195e6',
    500: '#556bda',
    950: '#000000',
  },
}

SCSS

$custom: #556bda;
$custom-light: #9195e6;
$custom-dark: #000000;

JSON

{
  "hex": "#556bda",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 218
  },
  "hsl": {
    "h": 230.075,
    "s": 64.251,
    "l": 59.412
  },
  "oklch": {
    "l": 0.56911,
    "c": 0.17062,
    "h": 271.5
  },
  "luminance": 0.17509
}

Semantic roles & 50–950 ramp

primary

#556BDA

secondary

#DFD7AB

accent

#CC41E7

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556BDA

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

Preview Lab → · Contrast checker → · Palette generator →