#3973C6#3973C6

#3973C6 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.9% C 0.143 H 257.7°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX#3973C6
RGBrgb(57, 115, 198)
HSLhsl(215, 55%, 50%)
HSVhsv(215, 71%, 78%)
CMYKcmyk(71.2%, 41.9%, 0%, 22.4%)
CIE-LABlab(48.52, 9.07, -48.80)
CIE-LCHlch(48.52, 49.63, 280.53°)
OKLaboklab(55.87% -0.0304 -0.1394)
OKLCHoklch(55.87% 0.143 257.7)
XYZxyz(18.0074, 17.2066, 55.7873)
Luminance0.1721 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3973C6 #C68C39
analogous
#39BAC6 #3973C6 #4539C6
triadic
#3973C6 #C63973 #73C639
tetradic
#3973C6 #C639BA #C68C39 #39C645
square
#3973C6 #C639BA #C68C39 #39C645
split-complementary
#3973C6 #C64539 #BAC639
monochromatic
#1E3C67 #2B5796 #3973C6 #6995D4 #98B6E1

Accessibility & contrast

On white

4.73
#3973C6 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.44
#3973C6 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973C6
4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3973C6#FFFFFF#000000##FFFFFF
##3973C61.004.734.444.73
#FFFFFF4.731.0021.001.00
#0000004.4421.001.0021.00
##FFFFFF4.731.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4B7AC9
Deuteranopia (green-blind)
#346DC4
Tritanopia (blue-blind)
#008693
Achromatopsia (no color)
#737373

Design tokens & code

CSS
--color: #3973c6;
/* rgb */ color: rgb(57, 115, 198);
/* oklch */ color: oklch(55.9% 0.143 257.7);
Tailwind
colors: {
  custom: {
    50: '#809ad8',
    500: '#3973c6',
    950: '#000000',
  },
}
SCSS
$custom: #3973c6;
$custom-light: #809ad8;
$custom-dark: #000000;
JSON
{
  "hex": "#3973c6",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 198
  },
  "hsl": {
    "h": 215.319,
    "s": 55.294,
    "l": 50
  },
  "oklch": {
    "l": 0.55873,
    "c": 0.14268,
    "h": 257.7
  },
  "luminance": 0.17209
}

Semantic roles & 50–950 ramp

primary
#3973C6
secondary
#CDB38E
accent
#A149DF
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0C0E14
muted
#7D7E83

Preview Lab

Preview with #3973C6

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

Preview Lab → · Contrast checker → · Palette generator →

#3973C6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva