#3541BB#3541BB

#3541BB is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.8% C 0.189 H 271.8°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#3541BB
RGB	rgb(53, 65, 187)
HSL	hsl(235, 56%, 47%)
HSV	hsv(235, 72%, 73%)
CMYK	cmyk(71.7%, 65.2%, 0%, 26.7%)
CIE-LAB	lab(34.24, 36.53, -65.51)
CIE-LCH	lch(34.24, 75.01, 299.14°)
OKLab	oklab(44.78% 0.0059 -0.1893)
OKLCH	oklch(44.78% 0.189 271.8)
XYZ	xyz(12.3251, 8.1241, 47.9226)
Luminance	0.0813 (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

#3541BB #BBAF35

analogous

#3584BB #3541BB #6C35BB

triadic

#3541BB #BB3541 #41BB35

tetradic

#3541BB #BB3584 #BBAF35 #35BB6C

square

#3541BB #BB3584 #BBAF35 #35BB6C

split-complementary

#3541BB #BB6C35 #84BB35

monochromatic

#1A205C #27308B #3541BB #5C67D1 #8C93DE

Accessibility & contrast

On white

8.00

#3541BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3541BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3541BB

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3541BB	#FFFFFF	#000000	##FFFFFF
##3541BB	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BF

Deuteranopia (green-blind)

#004AB9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3541bb;
/* rgb */ color: rgb(53, 65, 187);
/* oklch */ color: oklch(44.8% 0.189 271.8);

Tailwind

colors: {
  custom: {
    50: '#7f76d0',
    500: '#3541bb',
    950: '#000000',
  },
}

SCSS

$custom: #3541bb;
$custom-light: #7f76d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3541bb",
  "rgb": {
    "r": 53,
    "g": 65,
    "b": 187
  },
  "hsl": {
    "h": 234.627,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44784,
    "c": 0.1894,
    "h": 271.8
  },
  "luminance": 0.08125
}

Semantic roles & 50–950 ramp

primary

#3541BB

secondary

#C9C283

accent

#D249DF

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3541BB

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

Preview Lab → · Contrast checker → · Palette generator →