#3540BE#3540BE

#3540BE is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.194 H 271.9°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#3540BE
RGB	rgb(53, 64, 190)
HSL	hsl(235, 56%, 48%)
HSV	hsv(235, 72%, 75%)
CMYK	cmyk(72.1%, 66.3%, 0%, 25.5%)
CIE-LAB	lab(34.27, 38.20, -67.22)
CIE-LCH	lch(34.27, 77.32, 299.61°)
OKLab	oklab(44.89% 0.0064 -0.1943)
OKLCH	oklch(44.89% 0.194 271.9)
XYZ	xyz(12.5927, 8.1401, 49.6128)
Luminance	0.0814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3540BE #BEB335

analogous

#3585BE #3540BE #6E35BE

triadic

#3540BE #BE3540 #40BE35

tetradic

#3540BE #BE3585 #BEB335 #35BE6E

square

#3540BE #BE3585 #BEB335 #35BE6E

split-complementary

#3540BE #BE6E35 #85BE35

monochromatic

#1A205E #28308E #3540BE #5E67D2 #8E94DF

Accessibility & contrast

On white

7.99

#3540BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3540BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540BE

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540BE	#FFFFFF	#000000	##FFFFFF
##3540BE	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C2

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#006279

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3540be;
/* rgb */ color: rgb(53, 64, 190);
/* oklch */ color: oklch(44.9% 0.194 271.9);

Tailwind

colors: {
  custom: {
    50: '#8075d3',
    500: '#3540be',
    950: '#000000',
  },
}

SCSS

$custom: #3540be;
$custom-light: #8075d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3540be",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 190
  },
  "hsl": {
    "h": 235.182,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.4489,
    "c": 0.19442,
    "h": 271.9
  },
  "luminance": 0.08141
}

Semantic roles & 50–950 ramp

primary

#3540BE

secondary

#CAC485

accent

#D348E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3540BE

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

Preview Lab → · Contrast checker → · Palette generator →