#3943C7#3943C7

#3943C7 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.5% C 0.201 H 272.3°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX#3943C7
RGBrgb(57, 67, 199)
HSLhsl(236, 56%, 50%)
HSVhsv(236, 71%, 78%)
CMYKcmyk(71.4%, 66.3%, 0%, 22%)
CIE-LABlab(36.00, 39.93, -69.65)
CIE-LCHlch(36.00, 80.29, 299.83°)
OKLaboklab(46.45% 0.008 -0.2013)
OKLCHoklch(46.45% 0.201 272.3)
XYZxyz(13.9998, 9.0063, 55.0223)
Luminance0.0901 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3943C7 #C7BD39
analogous
#398AC7 #3943C7 #7639C7
triadic
#3943C7 #C73943 #43C739
tetradic
#3943C7 #C7398A #C7BD39 #39C776
square
#3943C7 #C7398A #C7BD39 #39C776
split-complementary
#3943C7 #C77639 #8AC739
monochromatic
#1D2368 #2B3398 #3943C7 #6970D4 #989EE2

Accessibility & contrast

On white

7.50
#3943C7 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.80
#3943C7 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943C7
7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3943C7#FFFFFF#000000##FFFFFF
##3943C71.007.502.807.50
#FFFFFF7.501.0021.001.00
#0000002.8021.001.0021.00
##FFFFFF7.501.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005BCB
Deuteranopia (green-blind)
#004EC5
Tritanopia (blue-blind)
#00667F
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #3943c7;
/* rgb */ color: rgb(57, 67, 199);
/* oklch */ color: oklch(46.5% 0.201 272.3);
Tailwind
colors: {
  custom: {
    50: '#8377d9',
    500: '#3943c7',
    950: '#000000',
  },
}
SCSS
$custom: #3943c7;
$custom-light: #8377d9;
$custom-dark: #000000;
JSON
{
  "hex": "#3943c7",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 199
  },
  "hsl": {
    "h": 235.775,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.46452,
    "c": 0.20149,
    "h": 272.3
  },
  "luminance": 0.09008
}

Semantic roles & 50–950 ramp

primary
#3943C7
secondary
#CEC98E
accent
#D549DF
background
#F8F7FD
surface
#F0EDFB
border
#CBC8D4
text
#0C0915
muted
#7D7B83

Preview Lab

Preview with #3943C7

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

Preview Lab → · Contrast checker → · Palette generator →

#3943C7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva