#3939A9#3939A9

#3939A9 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.0% C 0.174 H 275.9°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#3939A9
RGB	rgb(57, 57, 169)
HSL	hsl(240, 50%, 44%)
HSV	hsv(240, 66%, 66%)
CMYK	cmyk(66.3%, 66.3%, 0%, 33.7%)
CIE-LAB	lab(31.02, 35.78, -60.08)
CIE-LCH	lch(31.02, 69.93, 300.78°)
OKLab	oklab(42.01% 0.0178 -0.1733)
OKLCH	oklch(42.01% 0.174 275.9)
XYZ	xyz(10.3096, 6.6598, 38.2706)
Luminance	0.0666 (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

#3939A9 #A9A939

analogous

#3971A9 #3939A9 #7139A9

triadic

#3939A9 #A93939 #39A939

tetradic

#3939A9 #A93971 #A9A939 #39A971

square

#3939A9 #A93971 #A9A939 #39A971

split-complementary

#3939A9 #A97139 #71A939

monochromatic

#1A1A4D #2A2A7B #3939A9 #5858C7 #8686D6

Accessibility & contrast

On white

9.00

#3939A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#3939A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939A9

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939A9	#FFFFFF	#000000	##FFFFFF
##3939A9	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAD

Deuteranopia (green-blind)

#0044A7

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3939a9;
/* rgb */ color: rgb(57, 57, 169);
/* oklch */ color: oklch(42.0% 0.174 275.9);

Tailwind

colors: {
  custom: {
    50: '#7d70c4',
    500: '#3939a9',
    950: '#000000',
  },
}

SCSS

$custom: #3939a9;
$custom-light: #7d70c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3939a9",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 169
  },
  "hsl": {
    "h": 240,
    "s": 49.558,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42013,
    "c": 0.17423,
    "h": 275.9
  },
  "luminance": 0.06661
}

Semantic roles & 50–950 ramp

primary

#3939A9

secondary

#C0C07E

accent

#D94FD9

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3939A9

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

Preview Lab → · Contrast checker → · Palette generator →