#3840AA#3840AA

#3840AA is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.3% C 0.167 H 273.8°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#3840AA
RGB	rgb(56, 64, 170)
HSL	hsl(236, 50%, 44%)
HSV	hsv(236, 67%, 67%)
CMYK	cmyk(67.1%, 62.4%, 0%, 33.3%)
CIE-LAB	lab(32.72, 31.56, -57.90)
CIE-LCH	lch(32.72, 65.94, 298.59°)
OKLab	oklab(43.27% 0.011 -0.1669)
OKLCH	oklch(43.27% 0.167 273.8)
XYZ	xyz(10.7176, 7.4089, 38.8877)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3840AA #AAA238

analogous

#3879AA #3840AA #6938AA

triadic

#3840AA #AA3840 #40AA38

tetradic

#3840AA #AA3879 #AAA238 #38AA69

square

#3840AA #AA3879 #AAA238 #38AA69

split-complementary

#3840AA #AA6938 #79AA38

monochromatic

#1A1D4E #292F7C #3840AA #575FC8 #858BD7

Accessibility & contrast

On white

8.46

#3840AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3840AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3840AA

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3840AA	#FFFFFF	#000000	##FFFFFF
##3840AA	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AD

Deuteranopia (green-blind)

#0048A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3840aa;
/* rgb */ color: rgb(56, 64, 170);
/* oklch */ color: oklch(43.3% 0.167 273.8);

Tailwind

colors: {
  custom: {
    50: '#7d75c4',
    500: '#3840aa',
    950: '#000000',
  },
}

SCSS

$custom: #3840aa;
$custom-light: #7d75c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3840aa",
  "rgb": {
    "r": 56,
    "g": 64,
    "b": 170
  },
  "hsl": {
    "h": 235.789,
    "s": 50.442,
    "l": 44.314
  },
  "oklch": {
    "l": 0.43267,
    "c": 0.16728,
    "h": 273.8
  },
  "luminance": 0.0741
}

Semantic roles & 50–950 ramp

primary

#3840AA

secondary

#C1BC7D

accent

#D04EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3840AA

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

Preview Lab → · Contrast checker → · Palette generator →