#3939CC#3939CC

#3939CC is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.4% C 0.218 H 273.4°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#3939CC
RGB	rgb(57, 57, 204)
HSL	hsl(240, 59%, 51%)
HSV	hsv(240, 72%, 80%)
CMYK	cmyk(72.1%, 72.1%, 0%, 20%)
CIE-LAB	lab(34.30, 47.53, -75.35)
CIE-LCH	lch(34.30, 89.09, 302.24°)
OKLab	oklab(45.37% 0.0131 -0.218)
OKLCH	oklch(45.37% 0.218 273.4)
XYZ	xyz(14.0459, 8.1543, 57.9487)
Luminance	0.0816 (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

#3939CC #CCCC39

analogous

#3982CC #3939CC #8239CC

triadic

#3939CC #CC3939 #39CC39

tetradic

#3939CC #CC3982 #CCCC39 #39CC82

square

#3939CC #CC3982 #CCCC39 #39CC82

split-complementary

#3939CC #CC8239 #82CC39

monochromatic

#1C1C6E #29299F #3939CC #6A6AD9 #9A9AE5

Accessibility & contrast

On white

7.98

#3939CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3939CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939CC

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939CC	#FFFFFF	#000000	##FFFFFF
##3939CC	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D0

Deuteranopia (green-blind)

#004AC9

Tritanopia (blue-blind)

#00637F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3939cc;
/* rgb */ color: rgb(57, 57, 204);
/* oklch */ color: oklch(45.4% 0.218 273.4);

Tailwind

colors: {
  custom: {
    50: '#8571dd',
    500: '#3939cc',
    950: '#000000',
  },
}

SCSS

$custom: #3939cc;
$custom-light: #8571dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3939cc",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 204
  },
  "hsl": {
    "h": 240,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.45373,
    "c": 0.21835,
    "h": 273.4
  },
  "luminance": 0.08156
}

Semantic roles & 50–950 ramp

primary

#3939CC

secondary

#D1D190

accent

#E246E2

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3939CC

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

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