#3828B7#3828B7

#3828B7 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.9% C 0.210 H 276.7°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#3828B7
RGB	rgb(56, 40, 183)
HSL	hsl(247, 64%, 44%)
HSV	hsv(247, 78%, 72%)
CMYK	cmyk(69.4%, 78.1%, 0%, 28.2%)
CIE-LAB	lab(28.84, 49.90, -72.03)
CIE-LCH	lch(28.84, 87.62, 304.71°)
OKLab	oklab(40.85% 0.0246 -0.2082)
OKLCH	oklch(40.85% 0.21 276.7)
XYZ	xyz(10.9341, 5.7762, 45.3293)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3828B7 #A7B728

analogous

#285FB7 #3828B7 #7F28B7

triadic

#3828B7 #B73828 #28B738

tetradic

#3828B7 #B7285F #A7B728 #28B77F

square

#3828B7 #B7285F #A7B728 #28B77F

split-complementary

#3828B7 #B77F28 #5FB728

monochromatic

#191253 #291D85 #3828B7 #5646D6 #8478E1

Accessibility & contrast

On white

9.74

#3828B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3828B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3828B7

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3828B7	#FFFFFF	#000000	##FFFFFF
##3828B7	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABB

Deuteranopia (green-blind)

#003EB5

Tritanopia (blue-blind)

#00536F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3828b7;
/* rgb */ color: rgb(56, 40, 183);
/* oklch */ color: oklch(40.9% 0.210 276.7);

Tailwind

colors: {
  custom: {
    50: '#8166ce',
    500: '#3828b7',
    950: '#000000',
  },
}

SCSS

$custom: #3828b7;
$custom-light: #8166ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3828b7",
  "rgb": {
    "r": 56,
    "g": 40,
    "b": 183
  },
  "hsl": {
    "h": 246.713,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40853,
    "c": 0.20962,
    "h": 276.7
  },
  "luminance": 0.05777
}

Semantic roles & 50–950 ramp

primary

#3828B7

secondary

#BFC972

accent

#E741D5

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3828B7

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

Preview Lab → · Contrast checker → · Palette generator →