#337AC0#337AC0

#337AC0 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.9% C 0.129 H 250.9°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX#337AC0
RGBrgb(51, 122, 192)
HSLhsl(210, 58%, 48%)
HSVhsv(210, 73%, 75%)
CMYKcmyk(73.4%, 36.5%, 0%, 24.7%)
CIE-LABlab(50.01, 1.73, -43.00)
CIE-LCHlch(50.01, 43.03, 272.31°)
OKLaboklab(56.87% -0.0423 -0.1223)
OKLCHoklch(56.87% 0.129 250.9)
XYZxyz(17.8356, 18.4266, 52.4757)
Luminance0.1843 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#337AC0 #C07933
analogous
#33C0BF #337AC0 #3334C0
triadic
#337AC0 #C0337A #7AC033
tetradic
#337AC0 #BF33C0 #C07933 #34C033
square
#337AC0 #BF33C0 #C07933 #34C033
split-complementary
#337AC0 #C03334 #C0BF33
monochromatic
#193D5F #265B90 #337AC0 #5C99D4 #8DB7E1

Accessibility & contrast

On white

4.48
#337AC0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.69
#337AC0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337AC0
4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##337AC0#FFFFFF#000000##000000
##337AC01.004.484.694.69
#FFFFFF4.481.0021.0021.00
#0000004.6921.001.001.00
##0000004.6921.001.001.00

Color blindness preview

Protanopia (red-blind)
#5A7EC3
Deuteranopia (green-blind)
#4571BF
Tritanopia (blue-blind)
#008B94
Achromatopsia (no color)
#777777

Design tokens & code

CSS
--color: #337ac0;
/* rgb */ color: rgb(51, 122, 192);
/* oklch */ color: oklch(56.9% 0.129 250.9);
Tailwind
colors: {
  custom: {
    50: '#7da0d3',
    500: '#337ac0',
    950: '#000000',
  },
}
SCSS
$custom: #337ac0;
$custom-light: #7da0d3;
$custom-dark: #000000;
JSON
{
  "hex": "#337ac0",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 192
  },
  "hsl": {
    "h": 209.787,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5687,
    "c": 0.12946,
    "h": 250.9
  },
  "luminance": 0.18429
}

Semantic roles & 50–950 ramp

primary
#337AC0
secondary
#CBA784
accent
#9347E1
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #337AC0

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

Preview Lab → · Contrast checker → · Palette generator →

#337AC0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva