#3543B0#3543B0

#3543B0 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.2% C 0.172 H 271.7°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3543B0
RGB	rgb(53, 67, 176)
HSL	hsl(233, 54%, 45%)
HSV	hsv(233, 70%, 69%)
CMYK	cmyk(69.9%, 61.9%, 0%, 31%)
CIE-LAB	lab(33.78, 31.34, -59.75)
CIE-LCH	lch(33.78, 67.47, 297.68°)
OKLab	oklab(44.16% 0.0051 -0.1724)
OKLCH	oklch(44.16% 0.172 271.7)
XYZ	xyz(11.3092, 7.9047, 41.9956)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3543B0 #B0A235

analogous

#3580B0 #3543B0 #6535B0

triadic

#3543B0 #B03543 #43B035

tetradic

#3543B0 #B03580 #B0A235 #35B065

square

#3543B0 #B03580 #B0A235 #35B065

split-complementary

#3543B0 #B06535 #80B035

monochromatic

#191F52 #273181 #3543B0 #5664CC #858FDA

Accessibility & contrast

On white

8.14

#3543B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3543B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3543B0

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3543B0	#FFFFFF	#000000	##FFFFFF
##3543B0	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B4

Deuteranopia (green-blind)

#004AAE

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3543b0;
/* rgb */ color: rgb(53, 67, 176);
/* oklch */ color: oklch(44.2% 0.172 271.7);

Tailwind

colors: {
  custom: {
    50: '#7c77c8',
    500: '#3543b0',
    950: '#000000',
  },
}

SCSS

$custom: #3543b0;
$custom-light: #7c77c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3543b0",
  "rgb": {
    "r": 53,
    "g": 67,
    "b": 176
  },
  "hsl": {
    "h": 233.171,
    "s": 53.712,
    "l": 44.902
  },
  "oklch": {
    "l": 0.44158,
    "c": 0.17247,
    "h": 271.7
  },
  "luminance": 0.07906
}

Semantic roles & 50–950 ramp

primary

#3543B0

secondary

#C4BC7D

accent

#CC4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3543B0

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

Preview Lab → · Contrast checker → · Palette generator →