#556CDD#556CDD

#556CDD is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.3% C 0.173 H 271.3°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#556CDD
RGB	rgb(85, 108, 221)
HSL	hsl(230, 67%, 60%)
HSV	hsv(230, 62%, 87%)
CMYK	cmyk(61.5%, 51.1%, 0%, 13.3%)
CIE-LAB	lab(49.34, 26.06, -60.51)
CIE-LCH	lch(49.34, 65.88, 293.30°)
OKLab	oklab(57.31% 0.0039 -0.1734)
OKLCH	oklch(57.31% 0.173 271.3)
XYZ	xyz(22.1557, 17.8750, 70.6753)
Luminance	0.1788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CDD #DDC655

analogous

#55B0DD #556CDD #8255DD

triadic

#556CDD #DD556C #6CDD55

tetradic

#556CDD #DD55B0 #DDC655 #55DD82

square

#556CDD #DD55B0 #DDC655 #55DD82

split-complementary

#556CDD #DD8255 #B0DD55

monochromatic

#1F3399 #2944CC #556CDD #8898E7 #BBC4F1

Accessibility & contrast

On white

4.59

#556CDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#556CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556CDD

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

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

Color blindness preview

Protanopia (red-blind)

#2A7CE1

Deuteranopia (green-blind)

#0070DB

Tritanopia (blue-blind)

#00869A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556cdd;
/* rgb */ color: rgb(85, 108, 221);
/* oklch */ color: oklch(57.3% 0.173 271.3);

Tailwind

colors: {
  custom: {
    50: '#9195e8',
    500: '#556cdd',
    950: '#000000',
  },
}

SCSS

$custom: #556cdd;
$custom-light: #9195e8;
$custom-dark: #000000;

JSON

{
  "hex": "#556cdd",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 221
  },
  "hsl": {
    "h": 229.853,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.57314,
    "c": 0.17344,
    "h": 271.3
  },
  "luminance": 0.17877
}

Semantic roles & 50–950 ramp

primary

#556CDD

secondary

#E1D8AD

accent

#CD3EEA

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556CDD

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

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