#3939AC#3939AC

#3939AC is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.3% C 0.178 H 275.6°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#3939AC
RGB	rgb(57, 57, 172)
HSL	hsl(240, 50%, 45%)
HSV	hsv(240, 67%, 67%)
CMYK	cmyk(66.9%, 66.9%, 0%, 32.5%)
CIE-LAB	lab(31.29, 36.81, -61.44)
CIE-LCH	lch(31.29, 71.62, 300.93°)
OKLab	oklab(42.29% 0.0175 -0.1773)
OKLCH	oklch(42.29% 0.178 275.6)
XYZ	xyz(10.5944, 6.7737, 39.7709)
Luminance	0.0678 (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

#3939AC #ACAC39

analogous

#3973AC #3939AC #7339AC

triadic

#3939AC #AC3939 #39AC39

tetradic

#3939AC #AC3973 #ACAC39 #39AC73

square

#3939AC #AC3973 #ACAC39 #39AC73

split-complementary

#3939AC #AC7339 #73AC39

monochromatic

#1B1B50 #2A2A7E #3939AC #5A5AC8 #8888D8

Accessibility & contrast

On white

8.92

#3939AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3939AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939AC

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939AC	#FFFFFF	#000000	##FFFFFF
##3939AC	1.00	8.92	2.36	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3939ac;
/* rgb */ color: rgb(57, 57, 172);
/* oklch */ color: oklch(42.3% 0.178 275.6);

Tailwind

colors: {
  custom: {
    50: '#7e70c6',
    500: '#3939ac',
    950: '#000000',
  },
}

SCSS

$custom: #3939ac;
$custom-light: #7e70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3939ac",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 172
  },
  "hsl": {
    "h": 240,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42289,
    "c": 0.17817,
    "h": 275.6
  },
  "luminance": 0.06775
}

Semantic roles & 50–950 ramp

primary

#3939AC

secondary

#C2C27F

accent

#DA4EDA

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3939AC

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

Preview Lab → · Contrast checker → · Palette generator →