#3543B4#3543B4

#3543B4 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.5% C 0.178 H 271.6°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3543B4
RGB	rgb(53, 67, 180)
HSL	hsl(233, 55%, 46%)
HSV	hsv(233, 71%, 71%)
CMYK	cmyk(70.6%, 62.8%, 0%, 29.4%)
CIE-LAB	lab(34.12, 32.77, -61.58)
CIE-LCH	lch(34.12, 69.75, 298.02°)
OKLab	oklab(44.51% 0.0049 -0.1778)
OKLCH	oklch(44.51% 0.178 271.6)
XYZ	xyz(11.7108, 8.0653, 44.1108)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3543B4 #B4A635

analogous

#3582B4 #3543B4 #6635B4

triadic

#3543B4 #B43543 #43B435

tetradic

#3543B4 #B43582 #B4A635 #35B466

square

#3543B4 #B43582 #B4A635 #35B466

split-complementary

#3543B4 #B46635 #82B435

monochromatic

#192055 #273185 #3543B4 #5865CE #8891DC

Accessibility & contrast

On white

8.04

#3543B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3543B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3543B4

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3543B4	#FFFFFF	#000000	##FFFFFF
##3543B4	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#004AB2

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3543b4;
/* rgb */ color: rgb(53, 67, 180);
/* oklch */ color: oklch(44.5% 0.178 271.6);

Tailwind

colors: {
  custom: {
    50: '#7d77cb',
    500: '#3543b4',
    950: '#000000',
  },
}

SCSS

$custom: #3543b4;
$custom-light: #7d77cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3543b4",
  "rgb": {
    "r": 53,
    "g": 67,
    "b": 180
  },
  "hsl": {
    "h": 233.386,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.44509,
    "c": 0.17783,
    "h": 271.6
  },
  "luminance": 0.08066
}

Semantic roles & 50–950 ramp

primary

#3543B4

secondary

#C6BE7F

accent

#CE4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3543B4

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

Preview Lab → · Contrast checker → · Palette generator →