#3939DC#3939DC

#3939DC is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 47.0% C 0.237 H 272.5°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#3939DC
RGB	rgb(57, 57, 220)
HSL	hsl(240, 70%, 54%)
HSV	hsv(240, 74%, 86%)
CMYK	cmyk(74.1%, 74.1%, 0%, 13.7%)
CIE-LAB	lab(35.91, 52.70, -81.94)
CIE-LCH	lch(35.91, 97.42, 302.75°)
OKLab	oklab(47% 0.0104 -0.2371)
OKLCH	oklch(47% 0.237 272.5)
XYZ	xyz(16.0644, 8.9617, 68.5794)
Luminance	0.0896 (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

#3939DC #DCDC39

analogous

#398BDC #3939DC #8B39DC

triadic

#3939DC #DC3939 #39DC39

tetradic

#3939DC #DC398B #DCDC39 #39DC8B

square

#3939DC #DC398B #DCDC39 #39DC8B

split-complementary

#3939DC #DC8B39 #8BDC39

monochromatic

#171783 #2020B7 #3939DC #6D6DE5 #A1A1EE

Accessibility & contrast

On white

7.52

#3939DC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3939DC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939DC

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939DC	#FFFFFF	#000000	##FFFFFF
##3939DC	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CE1

Deuteranopia (green-blind)

#004CD9

Tritanopia (blue-blind)

#006988

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3939dc;
/* rgb */ color: rgb(57, 57, 220);
/* oklch */ color: oklch(47.0% 0.237 272.5);

Tailwind

colors: {
  custom: {
    50: '#8972e8',
    500: '#3939dc',
    950: '#000000',
  },
}

SCSS

$custom: #3939dc;
$custom-light: #8972e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3939dc",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 220
  },
  "hsl": {
    "h": 240,
    "s": 69.957,
    "l": 54.314
  },
  "oklch": {
    "l": 0.46996,
    "c": 0.23737,
    "h": 272.5
  },
  "luminance": 0.08963
}

Semantic roles & 50–950 ramp

primary

#3939DC

secondary

#DBDB96

accent

#ED3BED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3939DC

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

Preview Lab → · Contrast checker → · Palette generator →