#3428B8#3428B8

#3428B8 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.7% C 0.212 H 275.2°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#3428B8
RGB	rgb(52, 40, 184)
HSL	hsl(245, 64%, 44%)
HSV	hsv(245, 78%, 72%)
CMYK	cmyk(71.7%, 78.3%, 0%, 27.8%)
CIE-LAB	lab(28.66, 49.85, -72.93)
CIE-LCH	lch(28.66, 88.33, 304.35°)
OKLab	oklab(40.69% 0.019 -0.2109)
OKLCH	oklch(40.69% 0.212 275.2)
XYZ	xyz(10.8238, 5.7073, 45.8693)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3428B8 #ACB828

analogous

#2864B8 #3428B8 #7C28B8

triadic

#3428B8 #B83428 #28B834

tetradic

#3428B8 #B82864 #ACB828 #28B87C

square

#3428B8 #B82864 #ACB828 #28B87C

split-complementary

#3428B8 #B87C28 #64B828

monochromatic

#181253 #261D86 #3428B8 #5246D7 #8179E2

Accessibility & contrast

On white

9.81

#3428B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3428B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3428B8

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3428B8	#FFFFFF	#000000	##FFFFFF
##3428B8	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABC

Deuteranopia (green-blind)

#003DB5

Tritanopia (blue-blind)

#005470

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3428b8;
/* rgb */ color: rgb(52, 40, 184);
/* oklch */ color: oklch(40.7% 0.212 275.2);

Tailwind

colors: {
  custom: {
    50: '#8065cf',
    500: '#3428b8',
    950: '#000000',
  },
}

SCSS

$custom: #3428b8;
$custom-light: #8065cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3428b8",
  "rgb": {
    "r": 52,
    "g": 40,
    "b": 184
  },
  "hsl": {
    "h": 245,
    "s": 64.286,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40685,
    "c": 0.21174,
    "h": 275.2
  },
  "luminance": 0.05708
}

Semantic roles & 50–950 ramp

primary

#3428B8

secondary

#C2CA72

accent

#E741D9

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3428B8

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

Preview Lab → · Contrast checker → · Palette generator →