#3550B2#3550B2

#3550B2 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.8% C 0.159 H 268.1°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#3550B2
RGB	rgb(53, 80, 178)
HSL	hsl(227, 54%, 45%)
HSV	hsv(227, 70%, 70%)
CMYK	cmyk(70.2%, 55.1%, 0%, 30.2%)
CIE-LAB	lab(37.31, 23.59, -55.20)
CIE-LCH	lch(37.31, 60.03, 293.14°)
OKLab	oklab(46.84% -0.0054 -0.1589)
OKLCH	oklch(46.84% 0.159 268.1)
XYZ	xyz(12.3700, 9.7073, 43.3326)
Luminance	0.0971 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3550B2 #B29735

analogous

#358EB2 #3550B2 #5835B2

triadic

#3550B2 #B23550 #50B235

tetradic

#3550B2 #B2358E #B29735 #35B258

square

#3550B2 #B2358E #B29735 #35B258

split-complementary

#3550B2 #B25835 #8EB235

monochromatic

#192654 #273B83 #3550B2 #5771CD #8699DB

Accessibility & contrast

On white

7.14

#3550B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#3550B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3550B2

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3550B2	#FFFFFF	#000000	##FFFFFF
##3550B2	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB5

Deuteranopia (green-blind)

#0052B0

Tritanopia (blue-blind)

#006879

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3550b2;
/* rgb */ color: rgb(53, 80, 178);
/* oklch */ color: oklch(46.8% 0.159 268.1);

Tailwind

colors: {
  custom: {
    50: '#7c80ca',
    500: '#3550b2',
    950: '#000000',
  },
}

SCSS

$custom: #3550b2;
$custom-light: #7c80ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3550b2",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 178
  },
  "hsl": {
    "h": 227.04,
    "s": 54.113,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46838,
    "c": 0.15895,
    "h": 268.1
  },
  "luminance": 0.09709
}

Semantic roles & 50–950 ramp

primary

#3550B2

secondary

#C5B67E

accent

#BE4ADD

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3550B2

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

Preview Lab → · Contrast checker → · Palette generator →