#3939C5#3939C5

#3939C5 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.7% C 0.210 H 273.9°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#3939C5
RGB	rgb(57, 57, 197)
HSL	hsl(240, 55%, 50%)
HSV	hsv(240, 71%, 77%)
CMYK	cmyk(71.1%, 71.1%, 0%, 22.7%)
CIE-LAB	lab(33.62, 45.22, -72.40)
CIE-LCH	lch(33.62, 85.36, 301.99°)
OKLab	oklab(44.68% 0.0142 -0.2093)
OKLCH	oklch(44.68% 0.21 273.9)
XYZ	xyz(13.2252, 7.8260, 53.6261)
Luminance	0.0783 (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

#3939C5 #C5C539

analogous

#397FC5 #3939C5 #7F39C5

triadic

#3939C5 #C53939 #39C539

tetradic

#3939C5 #C5397F #C5C539 #39C57F

square

#3939C5 #C5397F #C5C539 #39C57F

split-complementary

#3939C5 #C57F39 #7FC539

monochromatic

#1E1E66 #2B2B96 #3939C5 #6868D3 #9797E1

Accessibility & contrast

On white

8.19

#3939C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3939C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939C5

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939C5	#FFFFFF	#000000	##FFFFFF
##3939C5	1.00	8.19	2.57	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C9

Deuteranopia (green-blind)

#0048C2

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3939c5;
/* rgb */ color: rgb(57, 57, 197);
/* oklch */ color: oklch(44.7% 0.210 273.9);

Tailwind

colors: {
  custom: {
    50: '#8371d8',
    500: '#3939c5',
    950: '#000000',
  },
}

SCSS

$custom: #3939c5;
$custom-light: #8371d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3939c5",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 197
  },
  "hsl": {
    "h": 240,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.44679,
    "c": 0.20983,
    "h": 273.9
  },
  "luminance": 0.07827
}

Semantic roles & 50–950 ramp

primary

#3939C5

secondary

#CDCD8D

accent

#DE49DE

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3939C5

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

Preview Lab → · Contrast checker → · Palette generator →