#3540B6#3540B6

#3540B6 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.184 H 272.2°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#3540B6
RGB	rgb(53, 64, 182)
HSL	hsl(235, 55%, 46%)
HSV	hsv(235, 71%, 71%)
CMYK	cmyk(70.9%, 64.8%, 0%, 28.6%)
CIE-LAB	lab(33.56, 35.39, -63.67)
CIE-LCH	lch(33.56, 72.84, 299.07°)
OKLab	oklab(44.15% 0.007 -0.1839)
OKLCH	oklch(44.15% 0.184 272.2)
XYZ	xyz(11.7422, 7.7999, 45.1336)
Luminance	0.0780 (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

#3540B6 #B6AB35

analogous

#3580B6 #3540B6 #6A35B6

triadic

#3540B6 #B63540 #40B635

tetradic

#3540B6 #B63580 #B6AB35 #35B66A

square

#3540B6 #B63580 #B6AB35 #35B66A

split-complementary

#3540B6 #B66A35 #80B635

monochromatic

#191F57 #272F87 #3540B6 #5963CF #8990DD

Accessibility & contrast

On white

8.20

#3540B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3540B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540B6

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540B6	#FFFFFF	#000000	##FFFFFF
##3540B6	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BA

Deuteranopia (green-blind)

#0049B4

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3540b6;
/* rgb */ color: rgb(53, 64, 182);
/* oklch */ color: oklch(44.2% 0.184 272.2);

Tailwind

colors: {
  custom: {
    50: '#7e75cd',
    500: '#3540b6',
    950: '#000000',
  },
}

SCSS

$custom: #3540b6;
$custom-light: #7e75cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3540b6",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 182
  },
  "hsl": {
    "h": 234.884,
    "s": 54.894,
    "l": 46.078
  },
  "oklch": {
    "l": 0.44154,
    "c": 0.18405,
    "h": 272.2
  },
  "luminance": 0.07801
}

Semantic roles & 50–950 ramp

primary

#3540B6

secondary

#C7C180

accent

#D24ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3540B6

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

Preview Lab → · Contrast checker → · Palette generator →