#3545B3#3545B3

#3545B3 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.8% C 0.174 H 271.1°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3545B3
RGB	rgb(53, 69, 179)
HSL	hsl(232, 54%, 45%)
HSV	hsv(232, 70%, 70%)
CMYK	cmyk(70.4%, 61.5%, 0%, 29.8%)
CIE-LAB	lab(34.53, 31.13, -60.31)
CIE-LCH	lch(34.53, 67.87, 297.30°)
OKLab	oklab(44.79% 0.0035 -0.174)
OKLCH	oklch(44.79% 0.174 271.1)
XYZ	xyz(11.7302, 8.2666, 43.6165)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3545B3 #B3A335

analogous

#3584B3 #3545B3 #6435B3

triadic

#3545B3 #B33545 #45B335

tetradic

#3545B3 #B33584 #B3A335 #35B364

square

#3545B3 #B33584 #B3A335 #35B364

split-complementary

#3545B3 #B36435 #84B335

monochromatic

#192155 #273384 #3545B3 #5867CD #8792DB

Accessibility & contrast

On white

7.91

#3545B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3545B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3545B3

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3545B3	#FFFFFF	#000000	##FFFFFF
##3545B3	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#004CB1

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3545b3;
/* rgb */ color: rgb(53, 69, 179);
/* oklch */ color: oklch(44.8% 0.174 271.1);

Tailwind

colors: {
  custom: {
    50: '#7d78cb',
    500: '#3545b3',
    950: '#000000',
  },
}

SCSS

$custom: #3545b3;
$custom-light: #7d78cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3545b3",
  "rgb": {
    "r": 53,
    "g": 69,
    "b": 179
  },
  "hsl": {
    "h": 232.381,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.44788,
    "c": 0.17405,
    "h": 271.1
  },
  "luminance": 0.08268
}

Semantic roles & 50–950 ramp

primary

#3545B3

secondary

#C5BC7F

accent

#CB4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3545B3

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

Preview Lab → · Contrast checker → · Palette generator →