#4183CF#4183CF

#4183CF is a mid, vivid cyan. Relative luminance 0.219; OKLCH L 60.3% C 0.134 H 253.7°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX#4183CF
RGBrgb(65, 131, 207)
HSLhsl(212, 60%, 53%)
HSVhsv(212, 69%, 81%)
CMYKcmyk(68.6%, 36.7%, 0%, 18.8%)
CIE-LABlab(53.88, 3.71, -45.38)
CIE-LCHlch(53.88, 45.54, 274.68°)
OKLaboklab(60.29% -0.0378 -0.129)
OKLCHoklch(60.29% 0.134 253.7)
XYZxyz(21.5546, 21.8592, 62.1027)
Luminance0.2186 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4183CF #CF8D41
analogous
#41CACF #4183CF #4641CF
triadic
#4183CF #CF4183 #83CF41
tetradic
#4183CF #CF41CA #CF8D41 #41CF46
square
#4183CF #CF41CA #CF8D41 #41CF46
split-complementary
#4183CF #CF4641 #CACF41
monochromatic
#1E4877 #2B65A8 #4183CF #72A3DB #A3C3E8

Accessibility & contrast

On white

3.91
#4183CF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.37
#4183CF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183CF
5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4183CF#FFFFFF#000000##000000
##4183CF1.003.915.375.37
#FFFFFF3.911.0021.0021.00
#0000005.3721.001.001.00
##0000005.3721.001.001.00

Color blindness preview

Protanopia (red-blind)
#6188D2
Deuteranopia (green-blind)
#4C7BCD
Tritanopia (blue-blind)
#00959F
Achromatopsia (no color)
#818181

Design tokens & code

CSS
--color: #4183cf;
/* rgb */ color: rgb(65, 131, 207);
/* oklch */ color: oklch(60.3% 0.134 253.7);
Tailwind
colors: {
  custom: {
    50: '#85a6de',
    500: '#4183cf',
    950: '#000000',
  },
}
SCSS
$custom: #4183cf;
$custom-light: #85a6de;
$custom-dark: #000000;
JSON
{
  "hex": "#4183cf",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 207
  },
  "hsl": {
    "h": 212.113,
    "s": 59.664,
    "l": 53.333
  },
  "oklch": {
    "l": 0.60285,
    "c": 0.13448,
    "h": 253.7
  },
  "luminance": 0.21861
}

Semantic roles & 50–950 ramp

primary
#4183CF
secondary
#D4B897
accent
#9945E3
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #4183CF

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

Preview Lab → · Contrast checker → · Palette generator →

#4183CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva