#3428B5#3428B5

#3428B5 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.208 H 275.4°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#3428B5
RGB	rgb(52, 40, 181)
HSL	hsl(245, 64%, 43%)
HSV	hsv(245, 78%, 71%)
CMYK	cmyk(71.3%, 77.9%, 0%, 29%)
CIE-LAB	lab(28.33, 48.91, -71.68)
CIE-LCH	lch(28.33, 86.78, 304.31°)
OKLab	oklab(40.36% 0.0197 -0.2073)
OKLCH	oklch(40.36% 0.208 275.4)
XYZ	xyz(10.5127, 5.5828, 44.2307)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3428B5 #A9B528

analogous

#2863B5 #3428B5 #7A28B5

triadic

#3428B5 #B53428 #28B534

tetradic

#3428B5 #B52863 #A9B528 #28B57A

square

#3428B5 #B52863 #A9B528 #28B57A

split-complementary

#3428B5 #B57A28 #63B528

monochromatic

#171251 #261D83 #3428B5 #5144D6 #8077E1

Accessibility & contrast

On white

9.92

#3428B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3428B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3428B5

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3428B5	#FFFFFF	#000000	##FFFFFF
##3428B5	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B9

Deuteranopia (green-blind)

#003CB3

Tritanopia (blue-blind)

#00526E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3428b5;
/* rgb */ color: rgb(52, 40, 181);
/* oklch */ color: oklch(40.4% 0.208 275.4);

Tailwind

colors: {
  custom: {
    50: '#7f65cd',
    500: '#3428b5',
    950: '#000000',
  },
}

SCSS

$custom: #3428b5;
$custom-light: #7f65cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3428b5",
  "rgb": {
    "r": 52,
    "g": 40,
    "b": 181
  },
  "hsl": {
    "h": 245.106,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.4036,
    "c": 0.2082,
    "h": 275.4
  },
  "luminance": 0.05584
}

Semantic roles & 50–950 ramp

primary

#3428B5

secondary

#C1C870

accent

#E741D9

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3428B5

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

Preview Lab → · Contrast checker → · Palette generator →