#3549BB#3549BB

#3549BB is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.2% C 0.180 H 270.1°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#3549BB
RGB	rgb(53, 73, 187)
HSL	hsl(231, 56%, 47%)
HSV	hsv(231, 72%, 73%)
CMYK	cmyk(71.7%, 61%, 0%, 26.7%)
CIE-LAB	lab(36.19, 31.44, -62.32)
CIE-LCH	lch(36.19, 69.80, 296.77°)
OKLab	oklab(46.22% 0.0004 -0.1799)
OKLCH	oklch(46.22% 0.18 270.1)
XYZ	xyz(12.8173, 9.1085, 48.0867)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3549BB #BBA735

analogous

#358CBB #3549BB #6435BB

triadic

#3549BB #BB3549 #49BB35

tetradic

#3549BB #BB358C #BBA735 #35BB64

square

#3549BB #BB358C #BBA735 #35BB64

split-complementary

#3549BB #BB6435 #8CBB35

monochromatic

#1A245C #27368B #3549BB #5C6ED1 #8C98DE

Accessibility & contrast

On white

7.44

#3549BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#3549BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3549BB

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3549BB	#FFFFFF	#000000	##FFFFFF
##3549BB	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBF

Deuteranopia (green-blind)

#004FB9

Tritanopia (blue-blind)

#00667B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3549bb;
/* rgb */ color: rgb(53, 73, 187);
/* oklch */ color: oklch(46.2% 0.180 270.1);

Tailwind

colors: {
  custom: {
    50: '#7e7bd0',
    500: '#3549bb',
    950: '#000000',
  },
}

SCSS

$custom: #3549bb;
$custom-light: #7e7bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3549bb",
  "rgb": {
    "r": 53,
    "g": 73,
    "b": 187
  },
  "hsl": {
    "h": 231.045,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.46221,
    "c": 0.17988,
    "h": 270.1
  },
  "luminance": 0.0911
}

Semantic roles & 50–950 ramp

primary

#3549BB

secondary

#C9BE83

accent

#C949DF

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3549BB

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

Preview Lab → · Contrast checker → · Palette generator →