#3939A4#3939A4

#3939A4 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.168 H 276.3°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#3939A4
RGB	rgb(57, 57, 164)
HSL	hsl(240, 48%, 43%)
HSV	hsv(240, 65%, 64%)
CMYK	cmyk(65.2%, 65.2%, 0%, 35.7%)
CIE-LAB	lab(30.58, 34.06, -57.78)
CIE-LCH	lch(30.58, 67.08, 300.52°)
OKLab	oklab(41.56% 0.0183 -0.1666)
OKLCH	oklch(41.56% 0.168 276.3)
XYZ	xyz(9.8491, 6.4756, 35.8457)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.17

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3939A4 #A4A439

analogous

#396EA4 #3939A4 #6E39A4

triadic

#3939A4 #A43939 #39A439

tetradic

#3939A4 #A4396E #A4A439 #39A46E

square

#3939A4 #A4396E #A4A439 #39A46E

split-complementary

#3939A4 #A46E39 #6EA439

monochromatic

#191949 #292977 #3939A4 #5656C4 #8383D4

Accessibility & contrast

On white

9.15

#3939A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3939A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939A4

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939A4	#FFFFFF	#000000	##FFFFFF
##3939A4	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA7

Deuteranopia (green-blind)

#0043A2

Tritanopia (blue-blind)

#005469

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3939a4;
/* rgb */ color: rgb(57, 57, 164);
/* oklch */ color: oklch(41.6% 0.168 276.3);

Tailwind

colors: {
  custom: {
    50: '#7c70c0',
    500: '#3939a4',
    950: '#000000',
  },
}

SCSS

$custom: #3939a4;
$custom-light: #7c70c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3939a4",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 164
  },
  "hsl": {
    "h": 240,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.4156,
    "c": 0.1676,
    "h": 276.3
  },
  "luminance": 0.06476
}

Semantic roles & 50–950 ramp

primary

#3939A4

secondary

#BEBE7B

accent

#D850D8

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3939A4

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

Preview Lab → · Contrast checker → · Palette generator →