#3543B8#3543B8

#3543B8 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.9% C 0.183 H 271.5°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#3543B8
RGB	rgb(53, 67, 184)
HSL	hsl(234, 55%, 46%)
HSV	hsv(234, 71%, 72%)
CMYK	cmyk(71.2%, 63.6%, 0%, 27.8%)
CIE-LAB	lab(34.46, 34.20, -63.39)
CIE-LCH	lch(34.46, 72.02, 298.35°)
OKLab	oklab(44.86% 0.0048 -0.1831)
OKLCH	oklch(44.86% 0.183 271.5)
XYZ	xyz(12.1242, 8.2307, 46.2878)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3543B8 #B8AA35

analogous

#3585B8 #3543B8 #6935B8

triadic

#3543B8 #B83543 #43B835

tetradic

#3543B8 #B83585 #B8AA35 #35B869

square

#3543B8 #B83585 #B8AA35 #35B869

split-complementary

#3543B8 #B86935 #85B835

monochromatic

#1A2059 #273288 #3543B8 #5B67D0 #8A93DD

Accessibility & contrast

On white

7.94

#3543B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3543B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3543B8

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3543B8	#FFFFFF	#000000	##FFFFFF
##3543B8	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BC

Deuteranopia (green-blind)

#004BB6

Tritanopia (blue-blind)

#006177

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3543b8;
/* rgb */ color: rgb(53, 67, 184);
/* oklch */ color: oklch(44.9% 0.183 271.5);

Tailwind

colors: {
  custom: {
    50: '#7e77ce',
    500: '#3543b8',
    950: '#000000',
  },
}

SCSS

$custom: #3543b8;
$custom-light: #7e77ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3543b8",
  "rgb": {
    "r": 53,
    "g": 67,
    "b": 184
  },
  "hsl": {
    "h": 233.588,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44864,
    "c": 0.18313,
    "h": 271.5
  },
  "luminance": 0.08232
}

Semantic roles & 50–950 ramp

primary

#3543B8

secondary

#C7C081

accent

#CF49DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3543B8

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

Preview Lab → · Contrast checker → · Palette generator →