#3939BD#3939BD

#3939BD is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.9% C 0.200 H 274.4°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3939BD
RGB	rgb(57, 57, 189)
HSL	hsl(240, 54%, 48%)
HSV	hsv(240, 70%, 74%)
CMYK	cmyk(69.8%, 69.8%, 0%, 25.9%)
CIE-LAB	lab(32.85, 42.56, -68.96)
CIE-LCH	lch(32.85, 81.04, 301.68°)
OKLab	oklab(43.9% 0.0154 -0.1993)
OKLCH	oklch(43.9% 0.2 274.4)
XYZ	xyz(12.3327, 7.4691, 48.9260)
Luminance	0.0747 (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

#3939BD #BDBD39

analogous

#397BBD #3939BD #7B39BD

triadic

#3939BD #BD3939 #39BD39

tetradic

#3939BD #BD397B #BDBD39 #39BD7B

square

#3939BD #BD397B #BDBD39 #39BD7B

split-complementary

#3939BD #BD7B39 #7BBD39

monochromatic

#1D1D5F #2B2B8E #3939BD #6363D0 #9292DE

Accessibility & contrast

On white

8.42

#3939BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3939BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939BD

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939BD	#FFFFFF	#000000	##FFFFFF
##3939BD	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C1

Deuteranopia (green-blind)

#0047BB

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3939bd;
/* rgb */ color: rgb(57, 57, 189);
/* oklch */ color: oklch(43.9% 0.200 274.4);

Tailwind

colors: {
  custom: {
    50: '#8270d2',
    500: '#3939bd',
    950: '#000000',
  },
}

SCSS

$custom: #3939bd;
$custom-light: #8270d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3939bd",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 189
  },
  "hsl": {
    "h": 240,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.43897,
    "c": 0.19991,
    "h": 274.4
  },
  "luminance": 0.0747
}

Semantic roles & 50–950 ramp

primary

#3939BD

secondary

#C9C989

accent

#DD4BDD

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3939BD

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

Preview Lab → · Contrast checker → · Palette generator →