#3543B5#3543B5

#3543B5 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.6% C 0.179 H 271.6°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#3543B5
RGB	rgb(53, 67, 181)
HSL	hsl(233, 55%, 46%)
HSV	hsv(233, 71%, 71%)
CMYK	cmyk(70.7%, 63%, 0%, 29%)
CIE-LAB	lab(34.20, 33.13, -62.03)
CIE-LCH	lch(34.20, 70.32, 298.11°)
OKLab	oklab(44.6% 0.0049 -0.1791)
OKLCH	oklch(44.6% 0.179 271.6)
XYZ	xyz(11.8130, 8.1062, 44.6492)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3543B5 #B5A735

analogous

#3583B5 #3543B5 #6735B5

triadic

#3543B5 #B53543 #43B535

tetradic

#3543B5 #B53583 #B5A735 #35B567

square

#3543B5 #B53583 #B5A735 #35B567

split-complementary

#3543B5 #B56735 #83B535

monochromatic

#192056 #273186 #3543B5 #5966CE #8891DC

Accessibility & contrast

On white

8.01

#3543B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3543B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3543B5

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3543B5	#FFFFFF	#000000	##FFFFFF
##3543B5	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B9

Deuteranopia (green-blind)

#004BB3

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3543b5;
/* rgb */ color: rgb(53, 67, 181);
/* oklch */ color: oklch(44.6% 0.179 271.6);

Tailwind

colors: {
  custom: {
    50: '#7e77cc',
    500: '#3543b5',
    950: '#000000',
  },
}

SCSS

$custom: #3543b5;
$custom-light: #7e77cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3543b5",
  "rgb": {
    "r": 53,
    "g": 67,
    "b": 181
  },
  "hsl": {
    "h": 233.438,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.44597,
    "c": 0.17916,
    "h": 271.6
  },
  "luminance": 0.08107
}

Semantic roles & 50–950 ramp

primary

#3543B5

secondary

#C6BE80

accent

#CE4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3543B5

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

Preview Lab → · Contrast checker → · Palette generator →