#399CC4#399CC4

#399CC4 is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.2% C 0.108 H 228.9°. Best body text is #000000 at 6.73:1 contrast (WCAG AA passes).

Color values

HEX#399CC4
RGBrgb(57, 156, 196)
HSLhsl(197, 55%, 50%)
HSVhsv(197, 71%, 77%)
CMYKcmyk(70.9%, 20.4%, 0%, 23.1%)
CIE-LABlab(60.45, -15.56, -28.90)
CIE-LCHlch(60.45, 32.82, 241.70°)
OKLaboklab(65.25% -0.0708 -0.081)
OKLCHoklch(65.25% 0.108 228.9)
XYZxyz(23.5356, 28.6296, 56.4995)
Luminance0.2863 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#399CC4 #C46139
analogous
#39C4A7 #399CC4 #3957C4
triadic
#399CC4 #C4399C #9CC439
tetradic
#399CC4 #A739C4 #C46139 #57C439
square
#399CC4 #A739C4 #C46139 #57C439
split-complementary
#399CC4 #C43957 #C4A739
monochromatic
#1D5165 #2B7695 #399CC4 #67B4D3 #97CBE1

Accessibility & contrast

On white

3.12
#399CC4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.73
#399CC4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CC4
6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##399CC4#FFFFFF#000000##000000
##399CC41.003.126.736.73
#FFFFFF3.121.0021.0021.00
#0000006.7321.001.001.00
##0000006.7321.001.001.00

Color blindness preview

Protanopia (red-blind)
#879AC6
Deuteranopia (green-blind)
#748CC3
Tritanopia (blue-blind)
#00A7A9
Achromatopsia (no color)
#929292

Design tokens & code

CSS
--color: #399cc4;
/* rgb */ color: rgb(57, 156, 196);
/* oklch */ color: oklch(65.2% 0.108 228.9);
Tailwind
colors: {
  custom: {
    50: '#81b9d6',
    500: '#399cc4',
    950: '#000000',
  },
}
SCSS
$custom: #399cc4;
$custom-light: #81b9d6;
$custom-dark: #000000;
JSON
{
  "hex": "#399cc4",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 196
  },
  "hsl": {
    "h": 197.266,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.65248,
    "c": 0.10762,
    "h": 228.9
  },
  "luminance": 0.28632
}

Semantic roles & 50–950 ramp

primary
#399CC4
secondary
#CC9F8D
accent
#744ADE
background
#F8FBFD
surface
#F0F6FA
border
#CBD0D3
text
#0C1114
muted
#7D8083

Preview Lab

Preview with #399CC4

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

Preview Lab → · Contrast checker → · Palette generator →

#399CC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva