#3939AE#3939AE

#3939AE is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.181 H 275.5°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#3939AE
RGB	rgb(57, 57, 174)
HSL	hsl(240, 51%, 45%)
HSV	hsv(240, 67%, 68%)
CMYK	cmyk(67.2%, 67.2%, 0%, 31.8%)
CIE-LAB	lab(31.47, 37.49, -62.34)
CIE-LCH	lch(31.47, 72.75, 301.02°)
OKLab	oklab(42.47% 0.0173 -0.1799)
OKLCH	oklch(42.47% 0.181 275.5)
XYZ	xyz(10.7879, 6.8511, 40.7901)
Luminance	0.0685 (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

#3939AE #AEAE39

analogous

#3973AE #3939AE #7339AE

triadic

#3939AE #AE3939 #39AE39

tetradic

#3939AE #AE3973 #AEAE39 #39AE73

square

#3939AE #AE3973 #AEAE39 #39AE73

split-complementary

#3939AE #AE7339 #73AE39

monochromatic

#1B1B52 #2A2A80 #3939AE #5B5BC9 #8989D8

Accessibility & contrast

On white

8.86

#3939AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3939AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939AE

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939AE	#FFFFFF	#000000	##FFFFFF
##3939AE	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB2

Deuteranopia (green-blind)

#0045AC

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3939ae;
/* rgb */ color: rgb(57, 57, 174);
/* oklch */ color: oklch(42.5% 0.181 275.5);

Tailwind

colors: {
  custom: {
    50: '#7f70c7',
    500: '#3939ae',
    950: '#000000',
  },
}

SCSS

$custom: #3939ae;
$custom-light: #7f70c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3939ae",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 174
  },
  "hsl": {
    "h": 240,
    "s": 50.649,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42474,
    "c": 0.18078,
    "h": 275.5
  },
  "luminance": 0.06852
}

Semantic roles & 50–950 ramp

primary

#3939AE

secondary

#C3C380

accent

#DA4EDA

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3939AE

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

Preview Lab → · Contrast checker → · Palette generator →