#3828B3#3828B3

#3828B3 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.205 H 277.2°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#3828B3
RGB	rgb(56, 40, 179)
HSL	hsl(247, 63%, 43%)
HSV	hsv(247, 78%, 70%)
CMYK	cmyk(68.7%, 77.7%, 0%, 29.8%)
CIE-LAB	lab(28.41, 48.66, -70.35)
CIE-LCH	lch(28.41, 85.54, 304.67°)
OKLab	oklab(40.43% 0.0256 -0.2033)
OKLCH	oklch(40.43% 0.205 277.2)
XYZ	xyz(10.5237, 5.6121, 43.1677)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3828B3 #A3B328

analogous

#285EB3 #3828B3 #7D28B3

triadic

#3828B3 #B33828 #28B338

tetradic

#3828B3 #B3285E #A3B328 #28B37D

square

#3828B3 #B3285E #A3B328 #28B37D

split-complementary

#3828B3 #B37D28 #5EB328

monochromatic

#19124F #281D81 #3828B3 #5443D5 #8275E0

Accessibility & contrast

On white

9.89

#3828B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3828B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3828B3

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3828B3	#FFFFFF	#000000	##FFFFFF
##3828B3	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B7

Deuteranopia (green-blind)

#003DB1

Tritanopia (blue-blind)

#00516D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3828b3;
/* rgb */ color: rgb(56, 40, 179);
/* oklch */ color: oklch(40.4% 0.205 277.2);

Tailwind

colors: {
  custom: {
    50: '#8165cb',
    500: '#3828b3',
    950: '#000000',
  },
}

SCSS

$custom: #3828b3;
$custom-light: #8165cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3828b3",
  "rgb": {
    "r": 56,
    "g": 40,
    "b": 179
  },
  "hsl": {
    "h": 246.906,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40426,
    "c": 0.20491,
    "h": 277.2
  },
  "luminance": 0.05613
}

Semantic roles & 50–950 ramp

primary

#3828B3

secondary

#BDC86F

accent

#E641D3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3828B3

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

Preview Lab → · Contrast checker → · Palette generator →