#3428B9#3428B9

#3428B9 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.8% C 0.213 H 275.1°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#3428B9
RGB	rgb(52, 40, 185)
HSL	hsl(245, 64%, 44%)
HSV	hsv(245, 78%, 73%)
CMYK	cmyk(71.9%, 78.4%, 0%, 27.5%)
CIE-LAB	lab(28.77, 50.16, -73.34)
CIE-LCH	lch(28.77, 88.85, 304.37°)
OKLab	oklab(40.79% 0.0188 -0.2121)
OKLCH	oklch(40.79% 0.213 275.1)
XYZ	xyz(10.9290, 5.7494, 46.4233)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3428B9 #ADB928

analogous

#2864B9 #3428B9 #7D28B9

triadic

#3428B9 #B93428 #28B934

tetradic

#3428B9 #B92864 #ADB928 #28B97D

square

#3428B9 #B92864 #ADB928 #28B97D

split-complementary

#3428B9 #B97D28 #64B928

monochromatic

#181254 #261D87 #3428B9 #5347D7 #8279E2

Accessibility & contrast

On white

9.77

#3428B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3428B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3428B9

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3428B9	#FFFFFF	#000000	##FFFFFF
##3428B9	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABD

Deuteranopia (green-blind)

#003DB6

Tritanopia (blue-blind)

#005470

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3428b9;
/* rgb */ color: rgb(52, 40, 185);
/* oklch */ color: oklch(40.8% 0.213 275.1);

Tailwind

colors: {
  custom: {
    50: '#8065cf',
    500: '#3428b9',
    950: '#000000',
  },
}

SCSS

$custom: #3428b9;
$custom-light: #8065cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3428b9",
  "rgb": {
    "r": 52,
    "g": 40,
    "b": 185
  },
  "hsl": {
    "h": 244.966,
    "s": 64.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.40794,
    "c": 0.21291,
    "h": 275.1
  },
  "luminance": 0.0575
}

Semantic roles & 50–950 ramp

primary

#3428B9

secondary

#C3CA73

accent

#E740DA

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3428B9

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

Preview Lab → · Contrast checker → · Palette generator →