#556CCE#556CCE

#556CCE is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.3% C 0.153 H 270.9°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#556CCE
RGB	rgb(85, 108, 206)
HSL	hsl(229, 55%, 57%)
HSV	hsv(229, 59%, 81%)
CMYK	cmyk(58.7%, 47.6%, 0%, 19.2%)
CIE-LAB	lab(48.40, 21.02, -53.49)
CIE-LCH	lch(48.40, 57.48, 291.45°)
OKLab	oklab(56.3% 0.0023 -0.1528)
OKLCH	oklch(56.3% 0.153 270.9)
XYZ	xyz(20.2457, 17.1111, 60.6164)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CCE #CEB755

analogous

#55A9CE #556CCE #7B55CE

triadic

#556CCE #CE556C #6CCE55

tetradic

#556CCE #CE55A9 #CEB755 #55CE7B

square

#556CCE #CE55A9 #CEB755 #55CE7B

split-complementary

#556CCE #CE7B55 #A9CE55

monochromatic

#263783 #334CB2 #556CCE #8595DC #B4BEE9

Accessibility & contrast

On white

4.75

#556CCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#556CCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556CCE

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CCE	#FFFFFF	#000000	##FFFFFF
##556CCE	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C79D2

Deuteranopia (green-blind)

#296ECC

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556cce;
/* rgb */ color: rgb(85, 108, 206);
/* oklch */ color: oklch(56.3% 0.153 270.9);

Tailwind

colors: {
  custom: {
    50: '#8f95dd',
    500: '#556cce',
    950: '#000000',
  },
}

SCSS

$custom: #556cce;
$custom-light: #8f95dd;
$custom-dark: #000000;

JSON

{
  "hex": "#556cce",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 206
  },
  "hsl": {
    "h": 228.595,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.56296,
    "c": 0.1528,
    "h": 270.9
  },
  "luminance": 0.17113
}

Semantic roles & 50–950 ramp

primary

#556CCE

secondary

#D8CFA7

accent

#C249DF

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556CCE

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

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