#3939AF#3939AF

#3939AF is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.182 H 275.4°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#3939AF
RGB	rgb(57, 57, 175)
HSL	hsl(240, 51%, 45%)
HSV	hsv(240, 67%, 69%)
CMYK	cmyk(67.4%, 67.4%, 0%, 31.4%)
CIE-LAB	lab(31.56, 37.83, -62.79)
CIE-LCH	lch(31.56, 73.31, 301.07°)
OKLab	oklab(42.57% 0.0172 -0.1813)
OKLCH	oklch(42.57% 0.182 275.4)
XYZ	xyz(10.8858, 6.8903, 41.3054)
Luminance	0.0689 (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

#3939AF #AFAF39

analogous

#3974AF #3939AF #7439AF

triadic

#3939AF #AF3939 #39AF39

tetradic

#3939AF #AF3974 #AFAF39 #39AF74

square

#3939AF #AF3974 #AFAF39 #39AF74

split-complementary

#3939AF #AF7439 #74AF39

monochromatic

#1B1B53 #2A2A81 #3939AF #5B5BCA #8A8AD9

Accessibility & contrast

On white

8.83

#3939AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3939AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939AF

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939AF	#FFFFFF	#000000	##FFFFFF
##3939AF	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B3

Deuteranopia (green-blind)

#0045AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3939af;
/* rgb */ color: rgb(57, 57, 175);
/* oklch */ color: oklch(42.6% 0.182 275.4);

Tailwind

colors: {
  custom: {
    50: '#7f70c8',
    500: '#3939af',
    950: '#000000',
  },
}

SCSS

$custom: #3939af;
$custom-light: #7f70c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3939af",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 175
  },
  "hsl": {
    "h": 240,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42567,
    "c": 0.18208,
    "h": 275.4
  },
  "luminance": 0.06891
}

Semantic roles & 50–950 ramp

primary

#3939AF

secondary

#C3C381

accent

#DA4DDA

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3939AF

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

Preview Lab → · Contrast checker → · Palette generator →