#5550CC#5550CC

#5550CC is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.9% C 0.186 H 279.3°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#5550CC
RGB	rgb(85, 80, 204)
HSL	hsl(242, 55%, 56%)
HSV	hsv(242, 61%, 80%)
CMYK	cmyk(58.3%, 60.8%, 0%, 20%)
CIE-LAB	lab(41.26, 37.70, -63.88)
CIE-LCH	lch(41.26, 74.18, 300.55°)
OKLab	oklab(50.91% 0.03 -0.1836)
OKLCH	oklch(50.91% 0.186 279.3)
XYZ	xyz(17.5106, 12.0270, 58.5137)
Luminance	0.1203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5550CC #C7CC50

analogous

#5089CC #5550CC #9350CC

triadic

#5550CC #CC5550 #50CC55

tetradic

#5550CC #CC5089 #C7CC50 #50CC93

square

#5550CC #CC5089 #C7CC50 #50CC93

split-complementary

#5550CC #CC9350 #89CC50

monochromatic

#28247D #3732AD #5550CC #837FDA #B1AFE8

Accessibility & contrast

On white

6.17

#5550CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#5550CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5550CC

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5550CC	#FFFFFF	#000000	##FFFFFF
##5550CC	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D0

Deuteranopia (green-blind)

#005CCA

Tritanopia (blue-blind)

#006E86

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #5550cc;
/* rgb */ color: rgb(85, 80, 204);
/* oklch */ color: oklch(50.9% 0.186 279.3);

Tailwind

colors: {
  custom: {
    50: '#9081dc',
    500: '#5550cc',
    950: '#000000',
  },
}

SCSS

$custom: #5550cc;
$custom-light: #9081dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5550cc",
  "rgb": {
    "r": 85,
    "g": 80,
    "b": 204
  },
  "hsl": {
    "h": 242.419,
    "s": 54.867,
    "l": 55.686
  },
  "oklch": {
    "l": 0.50909,
    "c": 0.18603,
    "h": 279.3
  },
  "luminance": 0.12028
}

Semantic roles & 50–950 ramp

primary

#5550CC

secondary

#D4D6A2

accent

#DE4AD8

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #5550CC

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

Preview Lab → · Contrast checker → · Palette generator →