#3828B6#3828B6

#3828B6 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.7% C 0.208 H 276.8°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#3828B6
RGB	rgb(56, 40, 182)
HSL	hsl(247, 64%, 44%)
HSV	hsv(247, 78%, 71%)
CMYK	cmyk(69.2%, 78%, 0%, 28.6%)
CIE-LAB	lab(28.73, 49.59, -71.61)
CIE-LCH	lch(28.73, 87.10, 304.70°)
OKLab	oklab(40.75% 0.0249 -0.2069)
OKLCH	oklch(40.75% 0.208 276.8)
XYZ	xyz(10.8304, 5.7348, 44.7831)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3828B6 #A6B628

analogous

#285FB6 #3828B6 #7F28B6

triadic

#3828B6 #B63828 #28B638

tetradic

#3828B6 #B6285F #A6B628 #28B67F

square

#3828B6 #B6285F #A6B628 #28B67F

split-complementary

#3828B6 #B67F28 #5FB628

monochromatic

#191252 #291D84 #3828B6 #5545D6 #8377E1

Accessibility & contrast

On white

9.78

#3828B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3828B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3828B6

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3828B6	#FFFFFF	#000000	##FFFFFF
##3828B6	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABA

Deuteranopia (green-blind)

#003EB4

Tritanopia (blue-blind)

#00536E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3828b6;
/* rgb */ color: rgb(56, 40, 182);
/* oklch */ color: oklch(40.7% 0.208 276.8);

Tailwind

colors: {
  custom: {
    50: '#8166cd',
    500: '#3828b6',
    950: '#000000',
  },
}

SCSS

$custom: #3828b6;
$custom-light: #8166cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3828b6",
  "rgb": {
    "r": 56,
    "g": 40,
    "b": 182
  },
  "hsl": {
    "h": 246.761,
    "s": 63.964,
    "l": 43.529
  },
  "oklch": {
    "l": 0.40746,
    "c": 0.20844,
    "h": 276.8
  },
  "luminance": 0.05736
}

Semantic roles & 50–950 ramp

primary

#3828B6

secondary

#BFC971

accent

#E741D4

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3828B6

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

Preview Lab → · Contrast checker → · Palette generator →