#5557BB#5557BB

#5557BB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.9% C 0.154 H 278.6°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#5557BB
RGB	rgb(85, 87, 187)
HSL	hsl(239, 43%, 53%)
HSV	hsv(239, 55%, 73%)
CMYK	cmyk(54.5%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(41.74, 27.88, -53.22)
CIE-LCH	lch(41.74, 60.08, 297.65°)
OKLab	oklab(50.88% 0.0229 -0.1522)
OKLCH	oklch(50.88% 0.154 278.6)
XYZ	xyz(16.1213, 12.3345, 48.5354)
Luminance	0.1234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5557BB #BBB955

analogous

#558ABB #5557BB #8655BB

triadic

#5557BB #BB5557 #57BB55

tetradic

#5557BB #BB558A #BBB955 #55BB86

square

#5557BB #BB558A #BBB955 #55BB86

split-complementary

#5557BB #BB8655 #8ABB55

monochromatic

#2B2C6B #3C3E97 #5557BB #8182CC #ACADDE

Accessibility & contrast

On white

6.06

#5557BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#5557BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5557BB

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5557BB	#FFFFFF	#000000	##FFFFFF
##5557BB	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D67BE

Deuteranopia (green-blind)

#075EB9

Tritanopia (blue-blind)

#246E80

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5557bb;
/* rgb */ color: rgb(85, 87, 187);
/* oklch */ color: oklch(50.9% 0.154 278.6);

Tailwind

colors: {
  custom: {
    50: '#8d86d0',
    500: '#5557bb',
    950: '#000000',
  },
}

SCSS

$custom: #5557bb;
$custom-light: #8d86d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5557bb",
  "rgb": {
    "r": 85,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 238.824,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.50883,
    "c": 0.1539,
    "h": 278.6
  },
  "luminance": 0.12336
}

Semantic roles & 50–950 ramp

primary

#5557BB

secondary

#CCCBA0

accent

#D055D3

background

#F9F8FC

surface

#F1EFF9

border

#CBCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5557BB

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

Preview Lab → · Contrast checker → · Palette generator →