#3827B8#3827B8

#3827B8 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.8% C 0.212 H 276.7°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#3827B8
RGB	rgb(56, 39, 184)
HSL	hsl(247, 65%, 44%)
HSV	hsv(247, 79%, 72%)
CMYK	cmyk(69.6%, 78.8%, 0%, 27.8%)
CIE-LAB	lab(28.78, 50.70, -72.73)
CIE-LCH	lch(28.78, 88.65, 304.88°)
OKLab	oklab(40.84% 0.0248 -0.2102)
OKLCH	oklch(40.84% 0.212 276.7)
XYZ	xyz(11.0053, 5.7515, 45.8683)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3827B8 #A7B827

analogous

#275FB8 #3827B8 #8027B8

triadic

#3827B8 #B83827 #27B838

tetradic

#3827B8 #B8275F #A7B827 #27B880

square

#3827B8 #B8275F #A7B827 #27B880

split-complementary

#3827B8 #B88027 #5FB827

monochromatic

#191253 #291C86 #3827B8 #5645D8 #8477E2

Accessibility & contrast

On white

9.77

#3827B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3827B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3827B8

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3827B8	#FFFFFF	#000000	##FFFFFF
##3827B8	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABC

Deuteranopia (green-blind)

#003EB5

Tritanopia (blue-blind)

#00536F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3827b8;
/* rgb */ color: rgb(56, 39, 184);
/* oklch */ color: oklch(40.8% 0.212 276.7);

Tailwind

colors: {
  custom: {
    50: '#8265cf',
    500: '#3827b8',
    950: '#000000',
  },
}

SCSS

$custom: #3827b8;
$custom-light: #8265cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3827b8",
  "rgb": {
    "r": 56,
    "g": 39,
    "b": 184
  },
  "hsl": {
    "h": 247.034,
    "s": 65.022,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4084,
    "c": 0.21165,
    "h": 276.7
  },
  "luminance": 0.05752
}

Semantic roles & 50–950 ramp

primary

#3827B8

secondary

#BFCA71

accent

#E840D4

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3827B8

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

Preview Lab → · Contrast checker → · Palette generator →