#3939DB#3939DB

#3939DB is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.9% C 0.236 H 272.6°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#3939DB
RGB	rgb(57, 57, 219)
HSL	hsl(240, 69%, 54%)
HSV	hsv(240, 74%, 86%)
CMYK	cmyk(74%, 74%, 0%, 14.1%)
CIE-LAB	lab(35.81, 52.38, -81.53)
CIE-LCH	lch(35.81, 96.91, 302.72°)
OKLab	oklab(46.89% 0.0106 -0.236)
OKLCH	oklch(46.89% 0.236 272.6)
XYZ	xyz(15.9324, 8.9089, 67.8840)
Luminance	0.0891 (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

#3939DB #DBDB39

analogous

#398ADB #3939DB #8A39DB

triadic

#3939DB #DB3939 #39DB39

tetradic

#3939DB #DB398A #DBDB39 #39DB8A

square

#3939DB #DB398A #DBDB39 #39DB8A

split-complementary

#3939DB #DB8A39 #8ADB39

monochromatic

#181882 #2121B6 #3939DB #6D6DE4 #A1A1EE

Accessibility & contrast

On white

7.55

#3939DB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3939DB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939DB

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939DB	#FFFFFF	#000000	##FFFFFF
##3939DB	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CE0

Deuteranopia (green-blind)

#004CD8

Tritanopia (blue-blind)

#006887

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3939db;
/* rgb */ color: rgb(57, 57, 219);
/* oklch */ color: oklch(46.9% 0.236 272.6);

Tailwind

colors: {
  custom: {
    50: '#8872e8',
    500: '#3939db',
    950: '#000000',
  },
}

SCSS

$custom: #3939db;
$custom-light: #8872e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3939db",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 219
  },
  "hsl": {
    "h": 240,
    "s": 69.231,
    "l": 54.118
  },
  "oklch": {
    "l": 0.46893,
    "c": 0.2362,
    "h": 272.6
  },
  "luminance": 0.08911
}

Semantic roles & 50–950 ramp

primary

#3939DB

secondary

#DADA95

accent

#EC3CEC

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3939DB

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

Preview Lab → · Contrast checker → · Palette generator →