#3939C7#3939C7

#3939C7 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.9% C 0.212 H 273.7°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#3939C7
RGB	rgb(57, 57, 199)
HSL	hsl(240, 56%, 50%)
HSV	hsv(240, 71%, 78%)
CMYK	cmyk(71.4%, 71.4%, 0%, 22%)
CIE-LAB	lab(33.81, 45.88, -73.24)
CIE-LCH	lch(33.81, 86.43, 302.07°)
OKLab	oklab(44.88% 0.0139 -0.2118)
OKLCH	oklch(44.88% 0.212 273.7)
XYZ	xyz(13.4558, 7.9183, 54.8410)
Luminance	0.0792 (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

#3939C7 #C7C739

analogous

#3980C7 #3939C7 #8039C7

triadic

#3939C7 #C73939 #39C739

tetradic

#3939C7 #C73980 #C7C739 #39C780

square

#3939C7 #C73980 #C7C739 #39C780

split-complementary

#3939C7 #C78039 #80C739

monochromatic

#1D1D68 #2B2B98 #3939C7 #6969D4 #9898E2

Accessibility & contrast

On white

8.13

#3939C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3939C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939C7

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939C7	#FFFFFF	#000000	##FFFFFF
##3939C7	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CB

Deuteranopia (green-blind)

#0049C4

Tritanopia (blue-blind)

#00617C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3939c7;
/* rgb */ color: rgb(57, 57, 199);
/* oklch */ color: oklch(44.9% 0.212 273.7);

Tailwind

colors: {
  custom: {
    50: '#8471d9',
    500: '#3939c7',
    950: '#000000',
  },
}

SCSS

$custom: #3939c7;
$custom-light: #8471d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3939c7",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 199
  },
  "hsl": {
    "h": 240,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.44876,
    "c": 0.21227,
    "h": 273.7
  },
  "luminance": 0.0792
}

Semantic roles & 50–950 ramp

primary

#3939C7

secondary

#CECE8E

accent

#DF49DF

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3939C7

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

Preview Lab → · Contrast checker → · Palette generator →