#3428BB#3428BB

#3428BB is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 41.0% C 0.215 H 274.9°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#3428BB
RGB	rgb(52, 40, 187)
HSL	hsl(245, 65%, 45%)
HSV	hsv(245, 79%, 73%)
CMYK	cmyk(72.2%, 78.6%, 0%, 26.7%)
CIE-LAB	lab(28.99, 50.78, -74.16)
CIE-LCH	lch(28.99, 89.88, 304.40°)
OKLab	oklab(41.01% 0.0183 -0.2145)
OKLCH	oklch(41.01% 0.215 274.9)
XYZ	xyz(11.1416, 5.8344, 47.5431)
Luminance	0.0584 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3428BB #AFBB28

analogous

#2866BB #3428BB #7E28BB

triadic

#3428BB #BB3428 #28BB34

tetradic

#3428BB #BB2866 #AFBB28 #28BB7E

square

#3428BB #BB2866 #AFBB28 #28BB7E

split-complementary

#3428BB #BB7E28 #66BB28

monochromatic

#181256 #261D89 #3428BB #5448D8 #837BE3

Accessibility & contrast

On white

9.69

#3428BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3428BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3428BB

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3428BB	#FFFFFF	#000000	##FFFFFF
##3428BB	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBF

Deuteranopia (green-blind)

#003EB8

Tritanopia (blue-blind)

#005571

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3428bb;
/* rgb */ color: rgb(52, 40, 187);
/* oklch */ color: oklch(41.0% 0.215 274.9);

Tailwind

colors: {
  custom: {
    50: '#8166d1',
    500: '#3428bb',
    950: '#000000',
  },
}

SCSS

$custom: #3428bb;
$custom-light: #8166d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3428bb",
  "rgb": {
    "r": 52,
    "g": 40,
    "b": 187
  },
  "hsl": {
    "h": 244.898,
    "s": 64.758,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41012,
    "c": 0.21524,
    "h": 274.9
  },
  "luminance": 0.05836
}

Semantic roles & 50–950 ramp

primary

#3428BB

secondary

#C4CB74

accent

#E840DA

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #3428BB

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

Preview Lab → · Contrast checker → · Palette generator →