#3938BB#3938BB

#3938BB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.5% C 0.198 H 274.7°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3938BB
RGB	rgb(57, 56, 187)
HSL	hsl(240, 54%, 48%)
HSV	hsv(240, 70%, 73%)
CMYK	cmyk(69.5%, 70.1%, 0%, 26.7%)
CIE-LAB	lab(32.45, 42.48, -68.45)
CIE-LCH	lch(32.45, 80.56, 301.83°)
OKLab	oklab(43.55% 0.0163 -0.1978)
OKLCH	oklch(43.55% 0.198 274.7)
XYZ	xyz(12.0682, 7.2849, 47.7742)
Luminance	0.0729 (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

#3938BB #BABB38

analogous

#3878BB #3938BB #7A38BB

triadic

#3938BB #BB3938 #38BB39

tetradic

#3938BB #BB3878 #BABB38 #38BB7A

square

#3938BB #BB3878 #BABB38 #38BB7A

split-complementary

#3938BB #BB7A38 #78BB38

monochromatic

#1C1C5D #2B2A8C #3938BB #6161D0 #9090DE

Accessibility & contrast

On white

8.55

#3938BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3938BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3938BB

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3938BB	#FFFFFF	#000000	##FFFFFF
##3938BB	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BF

Deuteranopia (green-blind)

#0046B9

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3938bb;
/* rgb */ color: rgb(57, 56, 187);
/* oklch */ color: oklch(43.5% 0.198 274.7);

Tailwind

colors: {
  custom: {
    50: '#8170d1',
    500: '#3938bb',
    950: '#000000',
  },
}

SCSS

$custom: #3938bb;
$custom-light: #8170d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3938bb",
  "rgb": {
    "r": 57,
    "g": 56,
    "b": 187
  },
  "hsl": {
    "h": 240.458,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43549,
    "c": 0.19849,
    "h": 274.7
  },
  "luminance": 0.07286
}

Semantic roles & 50–950 ramp

primary

#3938BB

secondary

#C8C886

accent

#DD4BDC

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3938BB

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

Preview Lab → · Contrast checker → · Palette generator →