#3827AB#3827AB

#3827AB is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.5% C 0.196 H 278.2°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#3827AB
RGB	rgb(56, 39, 171)
HSL	hsl(248, 63%, 41%)
HSV	hsv(248, 77%, 67%)
CMYK	cmyk(67.3%, 77.2%, 0%, 32.9%)
CIE-LAB	lab(27.38, 46.70, -67.26)
CIE-LCH	lch(27.38, 81.88, 304.77°)
OKLab	oklab(39.45% 0.0281 -0.1943)
OKLCH	oklch(39.45% 0.196 278.2)
XYZ	xyz(9.7047, 5.2312, 39.0185)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3827AB #9AAB27

analogous

#2758AB #3827AB #7A27AB

triadic

#3827AB #AB3827 #27AB38

tetradic

#3827AB #AB2758 #9AAB27 #27AB7A

square

#3827AB #AB2758 #9AAB27 #27AB7A

split-complementary

#3827AB #AB7A27 #58AB27

monochromatic

#171047 #281C79 #3827AB #503DD3 #7D6EDE

Accessibility & contrast

On white

10.26

#3827AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#3827AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3827AB

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3827AB	#FFFFFF	#000000	##FFFFFF
##3827AB	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046AF

Deuteranopia (green-blind)

#003BA9

Tritanopia (blue-blind)

#004E68

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3827ab;
/* rgb */ color: rgb(56, 39, 171);
/* oklch */ color: oklch(39.5% 0.196 278.2);

Tailwind

colors: {
  custom: {
    50: '#7f64c5',
    500: '#3827ab',
    950: '#000000',
  },
}

SCSS

$custom: #3827ab;
$custom-light: #7f64c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3827ab",
  "rgb": {
    "r": 56,
    "g": 39,
    "b": 171
  },
  "hsl": {
    "h": 247.727,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.39454,
    "c": 0.19631,
    "h": 278.2
  },
  "luminance": 0.05232
}

Semantic roles & 50–950 ramp

primary

#3827AB

secondary

#B9C569

accent

#E642D1

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3827AB

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

Preview Lab → · Contrast checker → · Palette generator →