#3428B3#3428B3

#3428B3 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.1% C 0.206 H 275.6°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#3428B3
RGB	rgb(52, 40, 179)
HSL	hsl(245, 63%, 43%)
HSV	hsv(245, 78%, 70%)
CMYK	cmyk(70.9%, 77.7%, 0%, 29.8%)
CIE-LAB	lab(28.12, 48.29, -70.85)
CIE-LCH	lch(28.12, 85.74, 304.28°)
OKLab	oklab(40.14% 0.0202 -0.2048)
OKLCH	oklch(40.14% 0.206 275.6)
XYZ	xyz(10.3090, 5.5013, 43.1577)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3428B3 #A7B328

analogous

#2861B3 #3428B3 #7928B3

triadic

#3428B3 #B33428 #28B334

tetradic

#3428B3 #B32861 #A7B328 #28B379

square

#3428B3 #B32861 #A7B328 #28B379

split-complementary

#3428B3 #B37928 #61B328

monochromatic

#17124F #251D81 #3428B3 #5043D5 #7E75E0

Accessibility & contrast

On white

10.00

#3428B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#3428B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3428B3

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3428B3	#FFFFFF	#000000	##FFFFFF
##3428B3	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B7

Deuteranopia (green-blind)

#003CB1

Tritanopia (blue-blind)

#00526D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3428b3;
/* rgb */ color: rgb(52, 40, 179);
/* oklch */ color: oklch(40.1% 0.206 275.6);

Tailwind

colors: {
  custom: {
    50: '#7f65cb',
    500: '#3428b3',
    950: '#000000',
  },
}

SCSS

$custom: #3428b3;
$custom-light: #7f65cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3428b3",
  "rgb": {
    "r": 52,
    "g": 40,
    "b": 179
  },
  "hsl": {
    "h": 245.18,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40144,
    "c": 0.20583,
    "h": 275.6
  },
  "luminance": 0.05502
}

Semantic roles & 50–950 ramp

primary

#3428B3

secondary

#C0C86F

accent

#E641D8

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3428B3

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

Preview Lab → · Contrast checker → · Palette generator →