#5550BF#5550BF

#5550BF is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.9% C 0.169 H 280.4°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#5550BF
RGB	rgb(85, 80, 191)
HSL	hsl(243, 46%, 53%)
HSV	hsv(243, 58%, 75%)
CMYK	cmyk(55.5%, 58.1%, 0%, 25.1%)
CIE-LAB	lab(40.29, 33.52, -57.90)
CIE-LCH	lch(40.29, 66.90, 300.07°)
OKLab	oklab(49.89% 0.0304 -0.166)
OKLCH	oklch(49.89% 0.169 280.4)
XYZ	xyz(16.0160, 11.4292, 50.6422)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5550BF #BABF50

analogous

#5082BF #5550BF #8C50BF

triadic

#5550BF #BF5550 #50BF55

tetradic

#5550BF #BF5082 #BABF50 #50BF8C

square

#5550BF #BF5082 #BABF50 #50BF8C

split-complementary

#5550BF #BF8C50 #82BF50

monochromatic

#2B286D #3D389A #5550BF #817DCF #ACAAE0

Accessibility & contrast

On white

6.39

#5550BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#5550BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5550BF

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5550BF	#FFFFFF	#000000	##FFFFFF
##5550BF	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C3

Deuteranopia (green-blind)

#005BBD

Tritanopia (blue-blind)

#206A80

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #5550bf;
/* rgb */ color: rgb(85, 80, 191);
/* oklch */ color: oklch(49.9% 0.169 280.4);

Tailwind

colors: {
  custom: {
    50: '#8e81d3',
    500: '#5550bf',
    950: '#000000',
  },
}

SCSS

$custom: #5550bf;
$custom-light: #8e81d3;
$custom-dark: #000000;

JSON

{
  "hex": "#5550bf",
  "rgb": {
    "r": 85,
    "g": 80,
    "b": 191
  },
  "hsl": {
    "h": 242.703,
    "s": 46.444,
    "l": 53.137
  },
  "oklch": {
    "l": 0.49894,
    "c": 0.16876,
    "h": 280.4
  },
  "luminance": 0.1143
}

Semantic roles & 50–950 ramp

primary

#5550BF

secondary

#CBCD9D

accent

#D652D0

background

#F9F7FD

surface

#F1EEFA

border

#CBC9D3

text

#0D0A14

muted

#7E7C83

Preview Lab

Preview with #5550BF

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

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