#3838BB#3838BB

#3838BB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.5% C 0.199 H 274.3°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#3838BB
RGB	rgb(56, 56, 187)
HSL	hsl(240, 54%, 48%)
HSV	hsv(240, 70%, 73%)
CMYK	cmyk(70.1%, 70.1%, 0%, 26.7%)
CIE-LAB	lab(32.38, 42.37, -68.56)
CIE-LCH	lch(32.38, 80.59, 301.72°)
OKLab	oklab(43.49% 0.0151 -0.1982)
OKLCH	oklch(43.49% 0.199 274.3)
XYZ	xyz(12.0117, 7.2558, 47.7716)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3838BB #BBBB38

analogous

#3879BB #3838BB #7938BB

triadic

#3838BB #BB3838 #38BB38

tetradic

#3838BB #BB3879 #BBBB38 #38BB79

square

#3838BB #BB3879 #BBBB38 #38BB79

split-complementary

#3838BB #BB7938 #79BB38

monochromatic

#1C1C5D #2A2A8C #3838BB #6161D0 #9090DE

Accessibility & contrast

On white

8.57

#3838BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3838BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3838BB

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3838BB	#FFFFFF	#000000	##FFFFFF
##3838BB	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BF

Deuteranopia (green-blind)

#0046B9

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3838bb;
/* rgb */ color: rgb(56, 56, 187);
/* oklch */ color: oklch(43.5% 0.199 274.3);

Tailwind

colors: {
  custom: {
    50: '#8170d1',
    500: '#3838bb',
    950: '#000000',
  },
}

SCSS

$custom: #3838bb;
$custom-light: #8170d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3838bb",
  "rgb": {
    "r": 56,
    "g": 56,
    "b": 187
  },
  "hsl": {
    "h": 240,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43486,
    "c": 0.19873,
    "h": 274.3
  },
  "luminance": 0.07257
}

Semantic roles & 50–950 ramp

primary

#3838BB

secondary

#C8C886

accent

#DD4BDD

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3838BB

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

Preview Lab → · Contrast checker → · Palette generator →