#5550BD#5550BD

#5550BD is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.7% C 0.166 H 280.5°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#5550BD
RGB	rgb(85, 80, 189)
HSL	hsl(243, 45%, 53%)
HSV	hsv(243, 58%, 74%)
CMYK	cmyk(55%, 57.7%, 0%, 25.9%)
CIE-LAB	lab(40.15, 32.88, -56.96)
CIE-LCH	lch(40.15, 65.77, 299.99°)
OKLab	oklab(49.74% 0.0304 -0.1632)
OKLCH	oklch(49.74% 0.166 280.5)
XYZ	xyz(15.7974, 11.3417, 49.4910)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5550BD #B8BD50

analogous

#5082BD #5550BD #8B50BD

triadic

#5550BD #BD5550 #50BD55

tetradic

#5550BD #BD5082 #B8BD50 #50BD8B

square

#5550BD #BD5082 #B8BD50 #50BD8B

split-complementary

#5550BD #BD8B50 #82BD50

monochromatic

#2B286A #3D3997 #5550BD #807CCE #ABA9DF

Accessibility & contrast

On white

6.42

#5550BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#5550BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5550BD

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5550BD	#FFFFFF	#000000	##FFFFFF
##5550BD	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C1

Deuteranopia (green-blind)

#005BBB

Tritanopia (blue-blind)

#23697F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #5550bd;
/* rgb */ color: rgb(85, 80, 189);
/* oklch */ color: oklch(49.7% 0.166 280.5);

Tailwind

colors: {
  custom: {
    50: '#8e81d2',
    500: '#5550bd',
    950: '#000000',
  },
}

SCSS

$custom: #5550bd;
$custom-light: #8e81d2;
$custom-dark: #000000;

JSON

{
  "hex": "#5550bd",
  "rgb": {
    "r": 85,
    "g": 80,
    "b": 189
  },
  "hsl": {
    "h": 242.752,
    "s": 45.228,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49742,
    "c": 0.16605,
    "h": 280.5
  },
  "luminance": 0.11343
}

Semantic roles & 50–950 ramp

primary

#5550BD

secondary

#CACC9D

accent

#D553CF

background

#F9F7FD

surface

#F1EEFA

border

#CBC9D3

text

#0D0A14

muted

#7E7C83

Preview Lab

Preview with #5550BD

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

Preview Lab → · Contrast checker → · Palette generator →