#3545B1#3545B1

#3545B1 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.6% C 0.171 H 271.2°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#3545B1
RGB	rgb(53, 69, 177)
HSL	hsl(232, 54%, 45%)
HSV	hsv(232, 70%, 69%)
CMYK	cmyk(70.1%, 61%, 0%, 30.6%)
CIE-LAB	lab(34.37, 30.41, -59.39)
CIE-LCH	lch(34.37, 66.72, 297.11°)
OKLab	oklab(44.62% 0.0035 -0.1713)
OKLCH	oklch(44.62% 0.171 271.2)
XYZ	xyz(11.5294, 8.1863, 42.5590)
Luminance	0.0819 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3545B1 #B1A135

analogous

#3583B1 #3545B1 #6335B1

triadic

#3545B1 #B13545 #45B135

tetradic

#3545B1 #B13583 #B1A135 #35B163

square

#3545B1 #B13583 #B1A135 #35B163

split-complementary

#3545B1 #B16335 #83B135

monochromatic

#192053 #273382 #3545B1 #5766CD #8691DB

Accessibility & contrast

On white

7.96

#3545B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3545B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3545B1

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3545B1	#FFFFFF	#000000	##FFFFFF
##3545B1	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B5

Deuteranopia (green-blind)

#004BAF

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3545b1;
/* rgb */ color: rgb(53, 69, 177);
/* oklch */ color: oklch(44.6% 0.171 271.2);

Tailwind

colors: {
  custom: {
    50: '#7c78c9',
    500: '#3545b1',
    950: '#000000',
  },
}

SCSS

$custom: #3545b1;
$custom-light: #7c78c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3545b1",
  "rgb": {
    "r": 53,
    "g": 69,
    "b": 177
  },
  "hsl": {
    "h": 232.258,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.44616,
    "c": 0.17137,
    "h": 271.2
  },
  "luminance": 0.08187
}

Semantic roles & 50–950 ramp

primary

#3545B1

secondary

#C4BB7D

accent

#CA4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3545B1

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

Preview Lab → · Contrast checker → · Palette generator →