#3540AE#3540AE

#3540AE is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.4% C 0.173 H 272.5°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#3540AE
RGB	rgb(53, 64, 174)
HSL	hsl(235, 53%, 45%)
HSV	hsv(235, 70%, 68%)
CMYK	cmyk(69.5%, 63.2%, 0%, 31.8%)
CIE-LAB	lab(32.87, 32.55, -60.05)
CIE-LCH	lch(32.87, 68.30, 298.46°)
OKLab	oklab(43.44% 0.0074 -0.1733)
OKLCH	oklch(43.44% 0.173 272.5)
XYZ	xyz(10.9390, 7.4786, 40.9032)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.83

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3540AE #AEA335

analogous

#357DAE #3540AE #6635AE

triadic

#3540AE #AE3540 #40AE35

tetradic

#3540AE #AE357D #AEA335 #35AE66

square

#3540AE #AE357D #AEA335 #35AE66

split-complementary

#3540AE #AE6635 #7DAE35

monochromatic

#181D50 #272F7F #3540AE #5560CB #848CDA

Accessibility & contrast

On white

8.41

#3540AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3540AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540AE

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540AE	#FFFFFF	#000000	##FFFFFF
##3540AE	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B2

Deuteranopia (green-blind)

#0048AC

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3540ae;
/* rgb */ color: rgb(53, 64, 174);
/* oklch */ color: oklch(43.4% 0.173 272.5);

Tailwind

colors: {
  custom: {
    50: '#7c75c7',
    500: '#3540ae',
    950: '#000000',
  },
}

SCSS

$custom: #3540ae;
$custom-light: #7c75c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3540ae",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 174
  },
  "hsl": {
    "h": 234.545,
    "s": 53.304,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43435,
    "c": 0.17346,
    "h": 272.5
  },
  "luminance": 0.0748
}

Semantic roles & 50–950 ramp

primary

#3540AE

secondary

#C3BD7C

accent

#CF4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3540AE

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

Preview Lab → · Contrast checker → · Palette generator →