#3541B0#3541B0

#3541B0 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.8% C 0.175 H 272.2°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3541B0
RGB	rgb(53, 65, 176)
HSL	hsl(234, 54%, 45%)
HSV	hsv(234, 70%, 69%)
CMYK	cmyk(69.9%, 63.1%, 0%, 31%)
CIE-LAB	lab(33.29, 32.63, -60.56)
CIE-LCH	lch(33.29, 68.79, 298.31°)
OKLab	oklab(43.79% 0.0066 -0.1748)
OKLCH	oklch(43.79% 0.175 272.2)
XYZ	xyz(11.1923, 7.6710, 41.9567)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.74

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3541B0 #B0A435

analogous

#357FB0 #3541B0 #6635B0

triadic

#3541B0 #B03541 #41B035

tetradic

#3541B0 #B0357F #B0A435 #35B066

square

#3541B0 #B0357F #B0A435 #35B066

split-complementary

#3541B0 #B06635 #7FB035

monochromatic

#191E52 #273081 #3541B0 #5662CC #858DDA

Accessibility & contrast

On white

8.29

#3541B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3541B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3541B0

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3541B0	#FFFFFF	#000000	##FFFFFF
##3541B0	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B4

Deuteranopia (green-blind)

#0049AE

Tritanopia (blue-blind)

#005D72

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3541b0;
/* rgb */ color: rgb(53, 65, 176);
/* oklch */ color: oklch(43.8% 0.175 272.2);

Tailwind

colors: {
  custom: {
    50: '#7d75c9',
    500: '#3541b0',
    950: '#000000',
  },
}

SCSS

$custom: #3541b0;
$custom-light: #7d75c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3541b0",
  "rgb": {
    "r": 53,
    "g": 65,
    "b": 176
  },
  "hsl": {
    "h": 234.146,
    "s": 53.712,
    "l": 44.902
  },
  "oklch": {
    "l": 0.43793,
    "c": 0.17491,
    "h": 272.2
  },
  "luminance": 0.07672
}

Semantic roles & 50–950 ramp

primary

#3541B0

secondary

#C4BD7D

accent

#CF4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3541B0

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

Preview Lab → · Contrast checker → · Palette generator →