#3541AB#3541AB

#3541AB is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.4% C 0.168 H 272.3°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#3541AB
RGB	rgb(53, 65, 171)
HSL	hsl(234, 53%, 44%)
HSV	hsv(234, 69%, 67%)
CMYK	cmyk(69%, 62%, 0%, 32.9%)
CIE-LAB	lab(32.87, 30.84, -58.26)
CIE-LCH	lch(32.87, 65.92, 297.89°)
OKLab	oklab(43.35% 0.0068 -0.1681)
OKLCH	oklch(43.35% 0.168 272.3)
XYZ	xyz(10.7067, 7.4767, 39.3991)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.29

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3541AB #AB9F35

analogous

#357CAB #3541AB #6435AB

triadic

#3541AB #AB3541 #41AB35

tetradic

#3541AB #AB357C #AB9F35 #35AB64

square

#3541AB #AB357C #AB9F35 #35AB64

split-complementary

#3541AB #AB6435 #7CAB35

monochromatic

#181D4E #272F7C #3541AB #535FCA #828BD8

Accessibility & contrast

On white

8.41

#3541AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3541AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3541AB

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3541AB	#FFFFFF	#000000	##FFFFFF
##3541AB	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AE

Deuteranopia (green-blind)

#0048A9

Tritanopia (blue-blind)

#005C6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3541ab;
/* rgb */ color: rgb(53, 65, 171);
/* oklch */ color: oklch(43.4% 0.168 272.3);

Tailwind

colors: {
  custom: {
    50: '#7b75c5',
    500: '#3541ab',
    950: '#000000',
  },
}

SCSS

$custom: #3541ab;
$custom-light: #7b75c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3541ab",
  "rgb": {
    "r": 53,
    "g": 65,
    "b": 171
  },
  "hsl": {
    "h": 233.898,
    "s": 52.679,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43353,
    "c": 0.1682,
    "h": 272.3
  },
  "luminance": 0.07478
}

Semantic roles & 50–950 ramp

primary

#3541AB

secondary

#C2BA7A

accent

#CD4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3541AB

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

Preview Lab → · Contrast checker → · Palette generator →