#3939D9#3939D9

#3939D9 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.7% C 0.234 H 272.7°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#3939D9
RGB	rgb(57, 57, 217)
HSL	hsl(240, 68%, 54%)
HSV	hsv(240, 74%, 85%)
CMYK	cmyk(73.7%, 73.7%, 0%, 14.9%)
CIE-LAB	lab(35.60, 51.74, -80.72)
CIE-LCH	lch(35.60, 95.88, 302.66°)
OKLab	oklab(46.69% 0.0109 -0.2336)
OKLCH	oklch(46.69% 0.234 272.7)
XYZ	xyz(15.6707, 8.8042, 66.5057)
Luminance	0.0881 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.27

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3939D9 #D9D939

analogous

#3989D9 #3939D9 #8939D9

triadic

#3939D9 #D93939 #39D939

tetradic

#3939D9 #D93989 #D9D939 #39D989

square

#3939D9 #D93989 #D9D939 #39D989

split-complementary

#3939D9 #D98939 #89D939

monochromatic

#18187F #2222B3 #3939D9 #6C6CE3 #A0A0ED

Accessibility & contrast

On white

7.61

#3939D9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3939D9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939D9

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939D9	#FFFFFF	#000000	##FFFFFF
##3939D9	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BDE

Deuteranopia (green-blind)

#004CD6

Tritanopia (blue-blind)

#006886

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3939d9;
/* rgb */ color: rgb(57, 57, 217);
/* oklch */ color: oklch(46.7% 0.234 272.7);

Tailwind

colors: {
  custom: {
    50: '#8871e6',
    500: '#3939d9',
    950: '#000000',
  },
}

SCSS

$custom: #3939d9;
$custom-light: #8871e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3939d9",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 217
  },
  "hsl": {
    "h": 240,
    "s": 67.797,
    "l": 53.725
  },
  "oklch": {
    "l": 0.46688,
    "c": 0.23385,
    "h": 272.7
  },
  "luminance": 0.08806
}

Semantic roles & 50–950 ramp

primary

#3939D9

secondary

#D9D995

accent

#EB3DEB

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3939D9

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

Preview Lab → · Contrast checker → · Palette generator →