#3545B4#3545B4

#3545B4 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.9% C 0.175 H 271.1°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#3545B4
RGB	rgb(53, 69, 180)
HSL	hsl(232, 55%, 46%)
HSV	hsv(232, 71%, 71%)
CMYK	cmyk(70.6%, 61.7%, 0%, 29.4%)
CIE-LAB	lab(34.61, 31.49, -60.77)
CIE-LCH	lch(34.61, 68.44, 297.39°)
OKLab	oklab(44.88% 0.0035 -0.1754)
OKLCH	oklch(44.88% 0.175 271.1)
XYZ	xyz(11.8317, 8.3072, 44.1511)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3545B4 #B4A435

analogous

#3584B4 #3545B4 #6435B4

triadic

#3545B4 #B43545 #45B435

tetradic

#3545B4 #B43584 #B4A435 #35B464

square

#3545B4 #B43584 #B4A435 #35B464

split-complementary

#3545B4 #B46435 #84B435

monochromatic

#192155 #273385 #3545B4 #5867CE #8892DC

Accessibility & contrast

On white

7.89

#3545B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3545B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3545B4

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3545B4	#FFFFFF	#000000	##FFFFFF
##3545B4	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B8

Deuteranopia (green-blind)

#004CB2

Tritanopia (blue-blind)

#006176

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3545b4;
/* rgb */ color: rgb(53, 69, 180);
/* oklch */ color: oklch(44.9% 0.175 271.1);

Tailwind

colors: {
  custom: {
    50: '#7d78cb',
    500: '#3545b4',
    950: '#000000',
  },
}

SCSS

$custom: #3545b4;
$custom-light: #7d78cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3545b4",
  "rgb": {
    "r": 53,
    "g": 69,
    "b": 180
  },
  "hsl": {
    "h": 232.441,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.44875,
    "c": 0.1754,
    "h": 271.1
  },
  "luminance": 0.08308
}

Semantic roles & 50–950 ramp

primary

#3545B4

secondary

#C6BD7F

accent

#CB4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3545B4

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

Preview Lab → · Contrast checker → · Palette generator →