#555BDC#555BDC

#555BDC is a mid, vivid blue. Relative luminance 0.146; OKLCH L 54.1% C 0.193 H 275.8°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#555BDC
RGB	rgb(85, 91, 220)
HSL	hsl(237, 66%, 60%)
HSV	hsv(237, 61%, 86%)
CMYK	cmyk(61.4%, 58.6%, 0%, 13.7%)
CIE-LAB	lab(45.05, 36.22, -66.89)
CIE-LCH	lch(45.05, 76.06, 298.43°)
OKLab	oklab(54.08% 0.0196 -0.1923)
OKLCH	oklch(54.08% 0.193 275.8)
XYZ	xyz(20.4015, 14.5791, 69.4352)
Luminance	0.1458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BDC #DCD655

analogous

#559FDC #555BDC #9255DC

triadic

#555BDC #DC555B #5BDC55

tetradic

#555BDC #DC559F #DCD655 #55DC92

square

#555BDC #DC559F #DCD655 #55DC92

split-complementary

#555BDC #DC9255 #9FDC55

monochromatic

#1F2597 #2A31CA #555BDC #888CE6 #BBBDF1

Accessibility & contrast

On white

5.36

#555BDC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#555BDC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BDC

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BDC	#FFFFFF	#000000	##FFFFFF
##555BDC	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071E0

Deuteranopia (green-blind)

#0065D9

Tritanopia (blue-blind)

#007A93

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555bdc;
/* rgb */ color: rgb(85, 91, 220);
/* oklch */ color: oklch(54.1% 0.193 275.8);

Tailwind

colors: {
  custom: {
    50: '#9289e8',
    500: '#555bdc',
    950: '#000000',
  },
}

SCSS

$custom: #555bdc;
$custom-light: #9289e8;
$custom-dark: #000000;

JSON

{
  "hex": "#555bdc",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 220
  },
  "hsl": {
    "h": 237.333,
    "s": 65.854,
    "l": 59.804
  },
  "oklch": {
    "l": 0.54083,
    "c": 0.19334,
    "h": 275.8
  },
  "luminance": 0.14581
}

Semantic roles & 50–950 ramp

primary

#555BDC

secondary

#E0DEAC

accent

#E13FE9

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555BDC

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

Preview Lab → · Contrast checker → · Palette generator →