#5550CB#5550CB

#5550CB is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.8% C 0.185 H 279.4°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#5550CB
RGB	rgb(85, 80, 203)
HSL	hsl(242, 54%, 55%)
HSV	hsv(242, 61%, 80%)
CMYK	cmyk(58.1%, 60.6%, 0%, 20.4%)
CIE-LAB	lab(41.18, 37.38, -63.43)
CIE-LCH	lch(41.18, 73.62, 300.51°)
OKLab	oklab(50.83% 0.0301 -0.1823)
OKLCH	oklch(50.83% 0.185 279.4)
XYZ	xyz(17.3911, 11.9792, 57.8841)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5550CB #C6CB50

analogous

#5088CB #5550CB #9250CB

triadic

#5550CB #CB5550 #50CB55

tetradic

#5550CB #CB5088 #C6CB50 #50CB92

square

#5550CB #CB5088 #C6CB50 #50CB92

split-complementary

#5550CB #CB9250 #88CB50

monochromatic

#28257C #3833AB #5550CB #837FD9 #B1AEE7

Accessibility & contrast

On white

6.18

#5550CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#5550CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5550CB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5550CB	#FFFFFF	#000000	##FFFFFF
##5550CB	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CF

Deuteranopia (green-blind)

#005CC9

Tritanopia (blue-blind)

#046E86

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #5550cb;
/* rgb */ color: rgb(85, 80, 203);
/* oklch */ color: oklch(50.8% 0.185 279.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#5550cb",
  "rgb": {
    "r": 85,
    "g": 80,
    "b": 203
  },
  "hsl": {
    "h": 242.439,
    "s": 54.185,
    "l": 55.49
  },
  "oklch": {
    "l": 0.50829,
    "c": 0.18472,
    "h": 279.4
  },
  "luminance": 0.1198
}

Semantic roles & 50–950 ramp

primary

#5550CB

secondary

#D3D5A2

accent

#DE4AD8

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #5550CB

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

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