#3939BA#3939BA

#3939BA is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.6% C 0.196 H 274.6°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#3939BA
RGB	rgb(57, 57, 186)
HSL	hsl(240, 53%, 48%)
HSV	hsv(240, 69%, 73%)
CMYK	cmyk(69.4%, 69.4%, 0%, 27.1%)
CIE-LAB	lab(32.57, 41.56, -67.66)
CIE-LCH	lch(32.57, 79.40, 301.56°)
OKLab	oklab(43.61% 0.0158 -0.1955)
OKLCH	oklch(43.61% 0.196 274.6)
XYZ	xyz(12.0105, 7.3402, 47.2287)
Luminance	0.0734 (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

#3939BA #BABA39

analogous

#3979BA #3939BA #7939BA

triadic

#3939BA #BA3939 #39BA39

tetradic

#3939BA #BA3979 #BABA39 #39BA79

square

#3939BA #BA3979 #BABA39 #39BA79

split-complementary

#3939BA #BA7939 #79BA39

monochromatic

#1C1C5C #2B2B8B #3939BA #6161CF #9090DD

Accessibility & contrast

On white

8.51

#3939BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3939BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939BA

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939BA	#FFFFFF	#000000	##FFFFFF
##3939BA	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BE

Deuteranopia (green-blind)

#0047B8

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3939ba;
/* rgb */ color: rgb(57, 57, 186);
/* oklch */ color: oklch(43.6% 0.196 274.6);

Tailwind

colors: {
  custom: {
    50: '#8170d0',
    500: '#3939ba',
    950: '#000000',
  },
}

SCSS

$custom: #3939ba;
$custom-light: #8170d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3939ba",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 186
  },
  "hsl": {
    "h": 240,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43608,
    "c": 0.19614,
    "h": 274.6
  },
  "luminance": 0.07341
}

Semantic roles & 50–950 ramp

primary

#3939BA

secondary

#C8C887

accent

#DC4BDC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3939BA

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

Preview Lab → · Contrast checker → · Palette generator →