#399AC4#399AC4

#399AC4 is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.8% C 0.108 H 230.6°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX#399AC4
RGBrgb(57, 154, 196)
HSLhsl(198, 55%, 50%)
HSVhsv(198, 71%, 77%)
CMYKcmyk(70.9%, 21.4%, 0%, 23.1%)
CIE-LABlab(59.86, -14.48, -29.82)
CIE-LCHlch(59.86, 33.15, 244.11°)
OKLaboklab(64.77% -0.0688 -0.0837)
OKLCHoklch(64.77% 0.108 230.6)
XYZxyz(23.2028, 27.9640, 56.3886)
Luminance0.2797 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#399AC4 #C46339
analogous
#39C4A8 #399AC4 #3955C4
triadic
#399AC4 #C4399A #9AC439
tetradic
#399AC4 #A839C4 #C46339 #55C439
square
#399AC4 #A839C4 #C46339 #55C439
split-complementary
#399AC4 #C43955 #C4A839
monochromatic
#1D4F65 #2B7595 #399AC4 #67B2D3 #97CAE1

Accessibility & contrast

On white

3.19
#399AC4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.59
#399AC4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399AC4
6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##399AC4#FFFFFF#000000##000000
##399AC41.003.196.596.59
#FFFFFF3.191.0021.0021.00
#0000006.5921.001.001.00
##0000006.5921.001.001.00

Color blindness preview

Protanopia (red-blind)
#8598C6
Deuteranopia (green-blind)
#728AC3
Tritanopia (blue-blind)
#00A6A8
Achromatopsia (no color)
#909090

Design tokens & code

CSS
--color: #399ac4;
/* rgb */ color: rgb(57, 154, 196);
/* oklch */ color: oklch(64.8% 0.108 230.6);
Tailwind
colors: {
  custom: {
    50: '#81b7d6',
    500: '#399ac4',
    950: '#000000',
  },
}
SCSS
$custom: #399ac4;
$custom-light: #81b7d6;
$custom-dark: #000000;
JSON
{
  "hex": "#399ac4",
  "rgb": {
    "r": 57,
    "g": 154,
    "b": 196
  },
  "hsl": {
    "h": 198.129,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.64771,
    "c": 0.10835,
    "h": 230.6
  },
  "luminance": 0.27967
}

Semantic roles & 50–950 ramp

primary
#399AC4
secondary
#CCA08D
accent
#764ADE
background
#F8FBFD
surface
#F0F6FA
border
#CBD0D3
text
#0C1114
muted
#7D8083

Preview Lab

Preview with #399AC4

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

Preview Lab → · Contrast checker → · Palette generator →

#399AC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva