#3540AD#3540AD

#3540AD is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.3% C 0.172 H 272.5°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#3540AD
RGB	rgb(53, 64, 173)
HSL	hsl(235, 53%, 44%)
HSV	hsv(235, 69%, 68%)
CMYK	cmyk(69.4%, 63%, 0%, 32.2%)
CIE-LAB	lab(32.79, 32.20, -59.59)
CIE-LCH	lch(32.79, 67.73, 298.38°)
OKLab	oklab(43.35% 0.0075 -0.172)
OKLCH	oklch(43.35% 0.172 272.5)
XYZ	xyz(10.8419, 7.4398, 40.3917)
Luminance	0.0744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.94

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3540AD #ADA235

analogous

#357CAD #3540AD #6635AD

triadic

#3540AD #AD3540 #40AD35

tetradic

#3540AD #AD357C #ADA235 #35AD66

square

#3540AD #AD357C #ADA235 #35AD66

split-complementary

#3540AD #AD6635 #7CAD35

monochromatic

#181D4F #272F7E #3540AD #545FCB #838BD9

Accessibility & contrast

On white

8.44

#3540AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3540AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540AD

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540AD	#FFFFFF	#000000	##FFFFFF
##3540AD	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B1

Deuteranopia (green-blind)

#0048AB

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3540ad;
/* rgb */ color: rgb(53, 64, 173);
/* oklch */ color: oklch(43.3% 0.172 272.5);

Tailwind

colors: {
  custom: {
    50: '#7c75c6',
    500: '#3540ad',
    950: '#000000',
  },
}

SCSS

$custom: #3540ad;
$custom-light: #7c75c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3540ad",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 173
  },
  "hsl": {
    "h": 234.5,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.43346,
    "c": 0.17212,
    "h": 272.5
  },
  "luminance": 0.07441
}

Semantic roles & 50–950 ramp

primary

#3540AD

secondary

#C3BC7B

accent

#CF4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3540AD

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

Preview Lab → · Contrast checker → · Palette generator →