#3540D0#3540D0

#3540D0 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.6% C 0.217 H 271.2°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#3540D0
RGB	rgb(53, 64, 208)
HSL	hsl(236, 62%, 51%)
HSV	hsv(236, 75%, 82%)
CMYK	cmyk(74.5%, 69.2%, 0%, 18.4%)
CIE-LAB	lab(35.94, 44.41, -74.98)
CIE-LCH	lch(35.94, 87.15, 300.64°)
OKLab	oklab(46.6% 0.0046 -0.217)
OKLCH	oklch(46.6% 0.217 271.2)
XYZ	xyz(14.6829, 8.9762, 60.6210)
Luminance	0.0898 (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

#3540D0 #D0C535

analogous

#358DD0 #3540D0 #7735D0

triadic

#3540D0 #D03540 #40D035

tetradic

#3540D0 #D0358D #D0C535 #35D077

square

#3540D0 #D0358D #D0C535 #35D077

split-complementary

#3540D0 #D07735 #8DD035

monochromatic

#1A2070 #262FA2 #3540D0 #676FDC #989EE7

Accessibility & contrast

On white

7.51

#3540D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3540D0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540D0

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540D0	#FFFFFF	#000000	##FFFFFF
##3540D0	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD4

Deuteranopia (green-blind)

#004DCD

Tritanopia (blue-blind)

#006883

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3540d0;
/* rgb */ color: rgb(53, 64, 208);
/* oklch */ color: oklch(46.6% 0.217 271.2);

Tailwind

colors: {
  custom: {
    50: '#8475e0',
    500: '#3540d0',
    950: '#000000',
  },
}

SCSS

$custom: #3540d0;
$custom-light: #8475e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3540d0",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 208
  },
  "hsl": {
    "h": 235.742,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46603,
    "c": 0.21705,
    "h": 271.2
  },
  "luminance": 0.08978
}

Semantic roles & 50–950 ramp

primary

#3540D0

secondary

#D3CE8E

accent

#DA42E5

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3540D0

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

Preview Lab → · Contrast checker → · Palette generator →