#5553BB#5553BB

#5553BB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.1% C 0.159 H 279.8°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#5553BB
RGB	rgb(85, 83, 187)
HSL	hsl(241, 43%, 53%)
HSV	hsv(241, 56%, 73%)
CMYK	cmyk(54.5%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(40.74, 30.38, -54.84)
CIE-LCH	lch(40.74, 62.69, 298.99°)
OKLab	oklab(50.14% 0.0272 -0.157)
OKLCH	oklch(50.14% 0.159 279.8)
XYZ	xyz(15.8064, 11.7047, 48.4304)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5553BB #B9BB53

analogous

#5385BB #5553BB #8953BB

triadic

#5553BB #BB5553 #53BB55

tetradic

#5553BB #BB5385 #B9BB53 #53BB89

square

#5553BB #BB5385 #B9BB53 #53BB89

split-complementary

#5553BB #BB8953 #85BB53

monochromatic

#2B2A6A #3D3B96 #5553BB #807FCC #ACABDE

Accessibility & contrast

On white

6.29

#5553BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#5553BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5553BB

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5553BB	#FFFFFF	#000000	##FFFFFF
##5553BB	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A64BF

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#256B7F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #5553bb;
/* rgb */ color: rgb(85, 83, 187);
/* oklch */ color: oklch(50.1% 0.159 279.8);

Tailwind

colors: {
  custom: {
    50: '#8d83d0',
    500: '#5553bb',
    950: '#000000',
  },
}

SCSS

$custom: #5553bb;
$custom-light: #8d83d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5553bb",
  "rgb": {
    "r": 85,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 241.154,
    "s": 43.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.50137,
    "c": 0.15931,
    "h": 279.8
  },
  "luminance": 0.11706
}

Semantic roles & 50–950 ramp

primary

#5553BB

secondary

#CBCB9E

accent

#D355D1

background

#F9F8FC

surface

#F1EFF9

border

#CBCAD2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5553BB

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

Preview Lab → · Contrast checker → · Palette generator →