#3428B1#3428B1

#3428B1 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.9% C 0.203 H 275.8°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#3428B1
RGB	rgb(52, 40, 177)
HSL	hsl(245, 63%, 43%)
HSV	hsv(245, 77%, 69%)
CMYK	cmyk(70.6%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(27.90, 47.66, -70.01)
CIE-LCH	lch(27.90, 84.69, 304.24°)
OKLab	oklab(39.93% 0.0207 -0.2024)
OKLCH	oklch(39.93% 0.203 275.8)
XYZ	xyz(10.1082, 5.4210, 42.1001)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3428B1 #A5B128

analogous

#2861B1 #3428B1 #7828B1

triadic

#3428B1 #B13428 #28B134

tetradic

#3428B1 #B12861 #A5B128 #28B178

square

#3428B1 #B12861 #A5B128 #28B178

split-complementary

#3428B1 #B17828 #61B128

monochromatic

#17114D #251D7F #3428B1 #4F42D4 #7D74E0

Accessibility & contrast

On white

10.07

#3428B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#3428B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3428B1

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3428B1	#FFFFFF	#000000	##FFFFFF
##3428B1	1.00	10.07	2.08	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B5

Deuteranopia (green-blind)

#003CAF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3428b1;
/* rgb */ color: rgb(52, 40, 177);
/* oklch */ color: oklch(39.9% 0.203 275.8);

Tailwind

colors: {
  custom: {
    50: '#7f65ca',
    500: '#3428b1',
    950: '#000000',
  },
}

SCSS

$custom: #3428b1;
$custom-light: #7f65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3428b1",
  "rgb": {
    "r": 52,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 245.255,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.39929,
    "c": 0.20345,
    "h": 275.8
  },
  "luminance": 0.05422
}

Semantic roles & 50–950 ramp

primary

#3428B1

secondary

#BFC76E

accent

#E642D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3428B1

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

Preview Lab → · Contrast checker → · Palette generator →