#3545B5#3545B5

#3545B5 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 45.0% C 0.177 H 271.1°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3545B5
RGB	rgb(53, 69, 181)
HSL	hsl(233, 55%, 46%)
HSV	hsv(233, 71%, 71%)
CMYK	cmyk(70.7%, 61.9%, 0%, 29%)
CIE-LAB	lab(34.70, 31.85, -61.22)
CIE-LCH	lch(34.70, 69.01, 297.48°)
OKLab	oklab(44.96% 0.0034 -0.1767)
OKLCH	oklch(44.96% 0.177 271.1)
XYZ	xyz(11.9340, 8.3481, 44.6895)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3545B5 #B5A535

analogous

#3585B5 #3545B5 #6535B5

triadic

#3545B5 #B53545 #45B535

tetradic

#3545B5 #B53585 #B5A535 #35B565

square

#3545B5 #B53585 #B5A535 #35B565

split-complementary

#3545B5 #B56535 #85B535

monochromatic

#192156 #273386 #3545B5 #5968CE #8893DC

Accessibility & contrast

On white

7.87

#3545B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3545B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3545B5

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3545B5	#FFFFFF	#000000	##FFFFFF
##3545B5	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B9

Deuteranopia (green-blind)

#004CB3

Tritanopia (blue-blind)

#006176

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3545b5;
/* rgb */ color: rgb(53, 69, 181);
/* oklch */ color: oklch(45.0% 0.177 271.1);

Tailwind

colors: {
  custom: {
    50: '#7d78cc',
    500: '#3545b5',
    950: '#000000',
  },
}

SCSS

$custom: #3545b5;
$custom-light: #7d78cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3545b5",
  "rgb": {
    "r": 53,
    "g": 69,
    "b": 181
  },
  "hsl": {
    "h": 232.5,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.44962,
    "c": 0.17673,
    "h": 271.1
  },
  "luminance": 0.08349
}

Semantic roles & 50–950 ramp

primary

#3545B5

secondary

#C6BD80

accent

#CC4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3545B5

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

Preview Lab → · Contrast checker → · Palette generator →