#5550AA#5550AA

#5550AA is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.4% C 0.140 H 282.3°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#5550AA
RGB	rgb(85, 80, 170)
HSL	hsl(243, 36%, 49%)
HSV	hsv(243, 53%, 67%)
CMYK	cmyk(50%, 52.9%, 0%, 33.3%)
CIE-LAB	lab(38.85, 26.82, -47.87)
CIE-LCH	lch(38.85, 54.87, 299.26°)
OKLab	oklab(48.36% 0.0298 -0.1365)
OKLCH	oklch(48.36% 0.14 282.3)
XYZ	xyz(13.8685, 10.5702, 39.3319)
Luminance	0.1057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5550AA #A5AA50

analogous

#5078AA #5550AA #8250AA

triadic

#5550AA #AA5550 #50AA55

tetradic

#5550AA #AA5078 #A5AA50 #50AA82

square

#5550AA #AA5078 #A5AA50 #50AA82

split-complementary

#5550AA #AA8250 #78AA50

monochromatic

#2B2957 #403C80 #5550AA #7C78BF #A4A1D3

Accessibility & contrast

On white

6.74

#5550AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#5550AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5550AA

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5550AA	#FFFFFF	#000000	##FFFFFF
##5550AA	1.00	6.74	3.11	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225FAD

Deuteranopia (green-blind)

#1B58A8

Tritanopia (blue-blind)

#356475

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #5550aa;
/* rgb */ color: rgb(85, 80, 170);
/* oklch */ color: oklch(48.4% 0.140 282.3);

Tailwind

colors: {
  custom: {
    50: '#8b81c4',
    500: '#5550aa',
    950: '#000000',
  },
}

SCSS

$custom: #5550aa;
$custom-light: #8b81c4;
$custom-dark: #000000;

JSON

{
  "hex": "#5550aa",
  "rgb": {
    "r": 85,
    "g": 80,
    "b": 170
  },
  "hsl": {
    "h": 243.333,
    "s": 36,
    "l": 49.02
  },
  "oklch": {
    "l": 0.48357,
    "c": 0.13974,
    "h": 282.3
  },
  "luminance": 0.10571
}

Semantic roles & 50–950 ramp

primary

#5550AA

secondary

#BEC096

accent

#CC5CC6

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #5550AA

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

Preview Lab → · Contrast checker → · Palette generator →