#3543AA#3543AA

#3543AA is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.164 H 271.8°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3543AA
RGB	rgb(53, 67, 170)
HSL	hsl(233, 52%, 44%)
HSV	hsv(233, 69%, 67%)
CMYK	cmyk(68.8%, 60.6%, 0%, 33.3%)
CIE-LAB	lab(33.29, 29.18, -56.98)
CIE-LCH	lch(33.29, 64.01, 297.12°)
OKLab	oklab(43.64% 0.0052 -0.1643)
OKLCH	oklch(43.64% 0.164 271.8)
XYZ	xyz(10.7286, 7.6725, 38.9380)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3543AA #AA9C35

analogous

#357DAA #3543AA #6135AA

triadic

#3543AA #AA3543 #43AA35

tetradic

#3543AA #AA357D #AA9C35 #35AA61

square

#3543AA #AA357D #AA9C35 #35AA61

split-complementary

#3543AA #AA6135 #7DAA35

monochromatic

#181E4D #26317B #3543AA #5361C9 #828CD8

Accessibility & contrast

On white

8.29

#3543AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3543AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3543AA

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3543AA	#FFFFFF	#000000	##FFFFFF
##3543AA	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AD

Deuteranopia (green-blind)

#0049A8

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3543aa;
/* rgb */ color: rgb(53, 67, 170);
/* oklch */ color: oklch(43.6% 0.164 271.8);

Tailwind

colors: {
  custom: {
    50: '#7b77c4',
    500: '#3543aa',
    950: '#000000',
  },
}

SCSS

$custom: #3543aa;
$custom-light: #7b77c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3543aa",
  "rgb": {
    "r": 53,
    "g": 67,
    "b": 170
  },
  "hsl": {
    "h": 232.821,
    "s": 52.466,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4364,
    "c": 0.16434,
    "h": 271.8
  },
  "luminance": 0.07673
}

Semantic roles & 50–950 ramp

primary

#3543AA

secondary

#C1B97A

accent

#CB4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3543AA

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

Preview Lab → · Contrast checker → · Palette generator →