#3540BD#3540BD

#3540BD is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.8% C 0.193 H 271.9°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#3540BD
RGB	rgb(53, 64, 189)
HSL	hsl(235, 56%, 47%)
HSV	hsv(235, 72%, 74%)
CMYK	cmyk(72%, 66.1%, 0%, 25.9%)
CIE-LAB	lab(34.18, 37.85, -66.78)
CIE-LCH	lch(34.18, 76.76, 299.54°)
OKLab	oklab(44.8% 0.0064 -0.193)
OKLCH	oklch(44.8% 0.193 271.9)
XYZ	xyz(12.4838, 8.0965, 49.0391)
Luminance	0.0810 (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

#3540BD #BDB235

analogous

#3584BD #3540BD #6E35BD

triadic

#3540BD #BD3540 #40BD35

tetradic

#3540BD #BD3584 #BDB235 #35BD6E

square

#3540BD #BD3584 #BDB235 #35BD6E

split-complementary

#3540BD #BD6E35 #84BD35

monochromatic

#1A205D #28308D #3540BD #5D67D2 #8D94DF

Accessibility & contrast

On white

8.02

#3540BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3540BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540BD

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540BD	#FFFFFF	#000000	##FFFFFF
##3540BD	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004ABB

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3540bd;
/* rgb */ color: rgb(53, 64, 189);
/* oklch */ color: oklch(44.8% 0.193 271.9);

Tailwind

colors: {
  custom: {
    50: '#8075d2',
    500: '#3540bd',
    950: '#000000',
  },
}

SCSS

$custom: #3540bd;
$custom-light: #8075d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3540bd",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 189
  },
  "hsl": {
    "h": 235.147,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44797,
    "c": 0.19314,
    "h": 271.9
  },
  "luminance": 0.08098
}

Semantic roles & 50–950 ramp

primary

#3540BD

secondary

#CAC484

accent

#D348DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3540BD

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

Preview Lab → · Contrast checker → · Palette generator →