#3947C7#3947C7

#3947C7 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 47.1% C 0.197 H 271.6°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#3947C7
RGB	rgb(57, 71, 199)
HSL	hsl(234, 56%, 50%)
HSV	hsv(234, 71%, 78%)
CMYK	cmyk(71.4%, 64.3%, 0%, 22%)
CIE-LAB	lab(36.93, 37.46, -68.13)
CIE-LCH	lch(36.93, 77.75, 298.81°)
OKLab	oklab(47.13% 0.0054 -0.1968)
OKLCH	oklch(47.13% 0.197 271.6)
XYZ	xyz(14.2459, 9.4984, 55.1044)
Luminance	0.0950 (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

#3947C7 #C7B939

analogous

#398EC7 #3947C7 #7239C7

triadic

#3947C7 #C73947 #47C739

tetradic

#3947C7 #C7398E #C7B939 #39C772

square

#3947C7 #C7398E #C7B939 #39C772

split-complementary

#3947C7 #C77239 #8EC739

monochromatic

#1D2568 #2B3698 #3947C7 #6973D4 #98A0E2

Accessibility & contrast

On white

7.24

#3947C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#3947C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947C7

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947C7	#FFFFFF	#000000	##FFFFFF
##3947C7	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECB

Deuteranopia (green-blind)

#0050C5

Tritanopia (blue-blind)

#006880

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3947c7;
/* rgb */ color: rgb(57, 71, 199);
/* oklch */ color: oklch(47.1% 0.197 271.6);

Tailwind

colors: {
  custom: {
    50: '#837ad9',
    500: '#3947c7',
    950: '#000000',
  },
}

SCSS

$custom: #3947c7;
$custom-light: #837ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3947c7",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 199
  },
  "hsl": {
    "h": 234.085,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.47131,
    "c": 0.19691,
    "h": 271.6
  },
  "luminance": 0.095
}

Semantic roles & 50–950 ramp

primary

#3947C7

secondary

#CEC78E

accent

#D049DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3947C7

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

Preview Lab → · Contrast checker → · Palette generator →