#399FD1#399FD1

#399FD1 is a light, moderate cyan. Relative luminance 0.303; OKLCH L 66.6% C 0.118 H 234.1°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX#399FD1
RGBrgb(57, 159, 209)
HSLhsl(200, 62%, 52%)
HSVhsv(200, 73%, 82%)
CMYKcmyk(72.7%, 23.9%, 0%, 18%)
CIE-LABlab(61.88, -12.85, -33.95)
CIE-LCHlch(61.88, 36.30, 249.27°)
OKLaboklab(66.57% -0.0692 -0.0955)
OKLCHoklch(66.57% 0.118 234.1)
XYZxyz(25.5895, 30.2666, 64.8026)
Luminance0.3027 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#399FD1 #D16B39
analogous
#39D1B7 #399FD1 #3953D1
triadic
#399FD1 #D1399F #9FD139
tetradic
#399FD1 #B739D1 #D16B39 #53D139
square
#399FD1 #B739D1 #D16B39 #53D139
split-complementary
#399FD1 #D13953 #D1B739
monochromatic
#1B5775 #277CA6 #399FD1 #6BB7DD #9CCFE8

Accessibility & contrast

On white

2.98
#399FD1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.05
#399FD1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #399FD1
7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##399FD1#FFFFFF#000000##000000
##399FD11.002.987.057.05
#FFFFFF2.981.0021.0021.00
#0000007.0521.001.001.00
##0000007.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#879ED3
Deuteranopia (green-blind)
#728FD0
Tritanopia (blue-blind)
#00ACB0
Achromatopsia (no color)
#959595

Design tokens & code

CSS
--color: #399fd1;
/* rgb */ color: rgb(57, 159, 209);
/* oklch */ color: oklch(66.6% 0.118 234.1);
Tailwind
colors: {
  custom: {
    50: '#83bbdf',
    500: '#399fd1',
    950: '#000000',
  },
}
SCSS
$custom: #399fd1;
$custom-light: #83bbdf;
$custom-dark: #000000;
JSON
{
  "hex": "#399fd1",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 209
  },
  "hsl": {
    "h": 199.737,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.66567,
    "c": 0.11795,
    "h": 234.1
  },
  "luminance": 0.3027
}

Semantic roles & 50–950 ramp

primary
#399FD1
secondary
#D4A892
accent
#7842E5
background
#F8FBFD
surface
#F0F6FB
border
#CBD0D4
text
#0C1115
muted
#7D8083

Preview Lab

Preview with #399FD1

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

Preview Lab → · Contrast checker → · Palette generator →

#399FD1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva