#3545B9#3545B9

#3545B9 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.3% C 0.182 H 271.0°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#3545B9
RGB	rgb(53, 69, 185)
HSL	hsl(233, 55%, 47%)
HSV	hsv(233, 71%, 73%)
CMYK	cmyk(71.4%, 62.7%, 0%, 27.5%)
CIE-LAB	lab(35.03, 33.28, -63.04)
CIE-LCH	lch(35.03, 71.28, 297.83°)
OKLab	oklab(45.31% 0.0033 -0.182)
OKLCH	oklch(45.31% 0.182 271)
XYZ	xyz(12.3503, 8.5147, 46.8822)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.57

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3545B9 #B9A935

analogous

#3587B9 #3545B9 #6735B9

triadic

#3545B9 #B93545 #45B935

tetradic

#3545B9 #B93587 #B9A935 #35B967

square

#3545B9 #B93587 #B9A935 #35B967

split-complementary

#3545B9 #B96735 #87B935

monochromatic

#1A225A #273389 #3545B9 #5B69D0 #8B95DE

Accessibility & contrast

On white

7.77

#3545B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3545B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3545B9

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3545B9	#FFFFFF	#000000	##FFFFFF
##3545B9	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BD

Deuteranopia (green-blind)

#004CB7

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3545b9;
/* rgb */ color: rgb(53, 69, 185);
/* oklch */ color: oklch(45.3% 0.182 271.0);

Tailwind

colors: {
  custom: {
    50: '#7e78cf',
    500: '#3545b9',
    950: '#000000',
  },
}

SCSS

$custom: #3545b9;
$custom-light: #7e78cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3545b9",
  "rgb": {
    "r": 53,
    "g": 69,
    "b": 185
  },
  "hsl": {
    "h": 232.727,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.45313,
    "c": 0.18206,
    "h": 271
  },
  "luminance": 0.08516
}

Semantic roles & 50–950 ramp

primary

#3545B9

secondary

#C8BF82

accent

#CD49DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3545B9

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

Preview Lab → · Contrast checker → · Palette generator →