#3942C0#3942C0

#3942C0 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.6% C 0.194 H 272.7°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#3942C0
RGB	rgb(57, 66, 192)
HSL	hsl(236, 54%, 49%)
HSV	hsv(236, 70%, 75%)
CMYK	cmyk(70.3%, 65.6%, 0%, 24.7%)
CIE-LAB	lab(35.14, 38.13, -66.96)
CIE-LCH	lch(35.14, 77.06, 299.66°)
OKLab	oklab(45.64% 0.0092 -0.1934)
OKLCH	oklch(45.64% 0.194 272.7)
XYZ	xyz(13.1468, 8.5708, 50.8204)
Luminance	0.0857 (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

#3942C0 #C0B739

analogous

#3986C0 #3942C0 #7439C0

triadic

#3942C0 #C03942 #42C039

tetradic

#3942C0 #C03986 #C0B739 #39C074

square

#3942C0 #C03986 #C0B739 #39C074

split-complementary

#3942C0 #C07439 #86C039

monochromatic

#1D2262 #2B3291 #3942C0 #656CD1 #9499DF

Accessibility & contrast

On white

7.74

#3942C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3942C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942C0

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942C0	#FFFFFF	#000000	##FFFFFF
##3942C0	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C4

Deuteranopia (green-blind)

#004CBE

Tritanopia (blue-blind)

#00637B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3942c0;
/* rgb */ color: rgb(57, 66, 192);
/* oklch */ color: oklch(45.6% 0.194 272.7);

Tailwind

colors: {
  custom: {
    50: '#8276d4',
    500: '#3942c0',
    950: '#000000',
  },
}

SCSS

$custom: #3942c0;
$custom-light: #8276d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3942c0",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 192
  },
  "hsl": {
    "h": 236,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45641,
    "c": 0.19367,
    "h": 272.7
  },
  "luminance": 0.08572
}

Semantic roles & 50–950 ramp

primary

#3942C0

secondary

#CBC68A

accent

#D44ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3942C0

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

Preview Lab → · Contrast checker → · Palette generator →