#337CC0#337CC0

#337CC0 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.128 H 249.7°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX#337CC0
RGBrgb(51, 124, 192)
HSLhsl(209, 58%, 48%)
HSVhsv(209, 73%, 75%)
CMYKcmyk(73.4%, 35.4%, 0%, 24.7%)
CIE-LABlab(50.60, 0.52, -42.07)
CIE-LCHlch(50.60, 42.07, 270.71°)
OKLaboklab(57.33% -0.0442 -0.1196)
OKLCHoklch(57.33% 0.128 249.7)
XYZxyz(18.0837, 18.9228, 52.5584)
Luminance0.1893 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#337CC0 #C07733
analogous
#33C0BD #337CC0 #3335C0
triadic
#337CC0 #C0337C #7CC033
tetradic
#337CC0 #BD33C0 #C07733 #35C033
square
#337CC0 #BD33C0 #C07733 #35C033
split-complementary
#337CC0 #C03335 #C0BD33
monochromatic
#193E5F #265D90 #337CC0 #5C9AD4 #8DB8E1

Accessibility & contrast

On white

4.39
#337CC0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.79
#337CC0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337CC0
4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##337CC0#FFFFFF#000000##000000
##337CC01.004.394.794.79
#FFFFFF4.391.0021.0021.00
#0000004.7921.001.001.00
##0000004.7921.001.001.00

Color blindness preview

Protanopia (red-blind)
#5D80C3
Deuteranopia (green-blind)
#4872BF
Tritanopia (blue-blind)
#008C95
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #337cc0;
/* rgb */ color: rgb(51, 124, 192);
/* oklch */ color: oklch(57.3% 0.128 249.7);
Tailwind
colors: {
  custom: {
    50: '#7da1d3',
    500: '#337cc0',
    950: '#000000',
  },
}
SCSS
$custom: #337cc0;
$custom-light: #7da1d3;
$custom-dark: #000000;
JSON
{
  "hex": "#337cc0",
  "rgb": {
    "r": 51,
    "g": 124,
    "b": 192
  },
  "hsl": {
    "h": 208.936,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.57331,
    "c": 0.1275,
    "h": 249.7
  },
  "luminance": 0.18925
}

Semantic roles & 50–950 ramp

primary
#337CC0
secondary
#CBA684
accent
#9147E1
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #337CC0

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

Preview Lab → · Contrast checker → · Palette generator →

#337CC0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva