#556DDA#556DDA

#556DDA is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.3% C 0.168 H 270.9°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#556DDA
RGB	rgb(85, 109, 218)
HSL	hsl(229, 64%, 59%)
HSV	hsv(229, 61%, 85%)
CMYK	cmyk(61%, 50%, 0%, 14.5%)
CIE-LAB	lab(49.41, 24.43, -58.70)
CIE-LCH	lch(49.41, 63.58, 292.60°)
OKLab	oklab(57.3% 0.0026 -0.1681)
OKLCH	oklch(57.3% 0.168 270.9)
XYZ	xyz(21.8656, 17.9287, 68.6244)
Luminance	0.1793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DDA #DAC255

analogous

#55B0DA #556DDA #8055DA

triadic

#556DDA #DA556D #6DDA55

tetradic

#556DDA #DA55B0 #DAC255 #55DA80

square

#556DDA #DA55B0 #DAC255 #55DA80

split-complementary

#556DDA #DA8055 #B0DA55

monochromatic

#203594 #2B47C7 #556DDA #8798E5 #BAC3F0

Accessibility & contrast

On white

4.58

#556DDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#556DDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556DDA

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DDA	#FFFFFF	#000000	##000000
##556DDA	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#317CDE

Deuteranopia (green-blind)

#1070D8

Tritanopia (blue-blind)

#008699

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556dda;
/* rgb */ color: rgb(85, 109, 218);
/* oklch */ color: oklch(57.3% 0.168 270.9);

Tailwind

colors: {
  custom: {
    50: '#9196e6',
    500: '#556dda',
    950: '#000000',
  },
}

SCSS

$custom: #556dda;
$custom-light: #9196e6;
$custom-dark: #000000;

JSON

{
  "hex": "#556dda",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 218
  },
  "hsl": {
    "h": 229.173,
    "s": 64.251,
    "l": 59.412
  },
  "oklch": {
    "l": 0.57302,
    "c": 0.1681,
    "h": 270.9
  },
  "luminance": 0.17931
}

Semantic roles & 50–950 ramp

primary

#556DDA

secondary

#DFD6AB

accent

#C941E7

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556DDA

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

Preview Lab → · Contrast checker → · Palette generator →