#3428A4#3428A4

#3428A4 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.6% C 0.188 H 277.2°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#3428A4
RGB	rgb(52, 40, 164)
HSL	hsl(246, 61%, 40%)
HSV	hsv(246, 76%, 64%)
CMYK	cmyk(68.3%, 75.6%, 0%, 35.7%)
CIE-LAB	lab(26.53, 43.52, -64.46)
CIE-LCH	lch(26.53, 77.78, 304.03°)
OKLab	oklab(38.55% 0.0237 -0.1862)
OKLCH	oklch(38.55% 0.188 277.2)
XYZ	xyz(8.8736, 4.9272, 35.5982)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3428A4 #98A428

analogous

#285AA4 #3428A4 #7228A4

triadic

#3428A4 #A43428 #28A434

tetradic

#3428A4 #A4285A #98A428 #28A472

square

#3428A4 #A4285A #98A428 #28A472

split-complementary

#3428A4 #A47228 #5AA428

monochromatic

#151042 #241C73 #3428A4 #493ACF #766BDB

Accessibility & contrast

On white

10.58

#3428A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#3428A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3428A4

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3428A4	#FFFFFF	#000000	##FFFFFF
##3428A4	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A8

Deuteranopia (green-blind)

#0039A2

Tritanopia (blue-blind)

#004C64

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3428a4;
/* rgb */ color: rgb(52, 40, 164);
/* oklch */ color: oklch(38.6% 0.188 277.2);

Tailwind

colors: {
  custom: {
    50: '#7c64c0',
    500: '#3428a4',
    950: '#000000',
  },
}

SCSS

$custom: #3428a4;
$custom-light: #7c64c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3428a4",
  "rgb": {
    "r": 52,
    "g": 40,
    "b": 164
  },
  "hsl": {
    "h": 245.806,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.38552,
    "c": 0.18773,
    "h": 277.2
  },
  "luminance": 0.04928
}

Semantic roles & 50–950 ramp

primary

#3428A4

secondary

#B9C166

accent

#E444D4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3428A4

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

Preview Lab → · Contrast checker → · Palette generator →