#5550BB#5550BB

#5550BB is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.6% C 0.163 H 280.7°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#5550BB
RGB	rgb(85, 80, 187)
HSL	hsl(243, 44%, 52%)
HSV	hsv(243, 57%, 73%)
CMYK	cmyk(54.5%, 57.2%, 0%, 26.7%)
CIE-LAB	lab(40.01, 32.24, -56.02)
CIE-LCH	lch(40.01, 64.64, 299.92°)
OKLab	oklab(49.59% 0.0304 -0.1605)
OKLCH	oklch(49.59% 0.163 280.7)
XYZ	xyz(15.5818, 11.2555, 48.3555)
Luminance	0.1126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5550BB #B6BB50

analogous

#5080BB #5550BB #8B50BB

triadic

#5550BB #BB5550 #50BB55

tetradic

#5550BB #BB5080 #B6BB50 #50BB8B

square

#5550BB #BB5080 #B6BB50 #50BB8B

split-complementary

#5550BB #BB8B50 #80BB50

monochromatic

#2B2868 #3E3A94 #5550BB #807CCC #ABA8DD

Accessibility & contrast

On white

6.46

#5550BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#5550BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5550BB

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5550BB	#FFFFFF	#000000	##FFFFFF
##5550BB	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#26697E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #5550bb;
/* rgb */ color: rgb(85, 80, 187);
/* oklch */ color: oklch(49.6% 0.163 280.7);

Tailwind

colors: {
  custom: {
    50: '#8d81d0',
    500: '#5550bb',
    950: '#000000',
  },
}

SCSS

$custom: #5550bb;
$custom-light: #8d81d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5550bb",
  "rgb": {
    "r": 85,
    "g": 80,
    "b": 187
  },
  "hsl": {
    "h": 242.804,
    "s": 44.033,
    "l": 52.353
  },
  "oklch": {
    "l": 0.49591,
    "c": 0.16334,
    "h": 280.7
  },
  "luminance": 0.11256
}

Semantic roles & 50–950 ramp

primary

#5550BB

secondary

#C9CB9C

accent

#D454CE

background

#F9F7FC

surface

#F1EEF9

border

#CBC9D2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5550BB

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

Preview Lab → · Contrast checker → · Palette generator →