#4187CC#4187CC

#4187CC is a mid, vivid cyan. Relative luminance 0.228; OKLCH L 61.0% C 0.127 H 250.4°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX#4187CC
RGBrgb(65, 135, 204)
HSLhsl(210, 58%, 53%)
HSVhsv(210, 68%, 80%)
CMYKcmyk(68.1%, 33.8%, 0%, 20%)
CIE-LABlab(54.88, 0.28, -42.11)
CIE-LCHlch(54.88, 42.11, 270.38°)
OKLaboklab(61.02% -0.0425 -0.1194)
OKLCHoklch(61.02% 0.127 250.4)
XYZxyz(21.7390, 22.8091, 60.3720)
Luminance0.2281 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4187CC #CC8641
analogous
#41CCCB #4187CC #4142CC
triadic
#4187CC #CC4187 #87CC41
tetradic
#4187CC #CB41CC #CC8641 #42CC41
square
#4187CC #CB41CC #CC8641 #42CC41
split-complementary
#4187CC #CC4142 #CCCB41
monochromatic
#1F4A74 #2C68A4 #4187CC #71A5D9 #A1C4E6

Accessibility & contrast

On white

3.78
#4187CC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.56
#4187CC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187CC
5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4187CC#FFFFFF#000000##000000
##4187CC1.003.785.565.56
#FFFFFF3.781.0021.0021.00
#0000005.5621.001.001.00
##0000005.5621.001.001.00

Color blindness preview

Protanopia (red-blind)
#688BCF
Deuteranopia (green-blind)
#557DCB
Tritanopia (blue-blind)
#0097A0
Achromatopsia (no color)
#838383

Design tokens & code

CSS
--color: #4187cc;
/* rgb */ color: rgb(65, 135, 204);
/* oklch */ color: oklch(61.0% 0.127 250.4);
Tailwind
colors: {
  custom: {
    50: '#85a9dc',
    500: '#4187cc',
    950: '#000000',
  },
}
SCSS
$custom: #4187cc;
$custom-light: #85a9dc;
$custom-dark: #000000;
JSON
{
  "hex": "#4187cc",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 204
  },
  "hsl": {
    "h": 209.784,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.61017,
    "c": 0.12676,
    "h": 250.4
  },
  "luminance": 0.22811
}

Semantic roles & 50–950 ramp

primary
#4187CC
secondary
#D3B496
accent
#9347E1
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #4187CC

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

Preview Lab → · Contrast checker → · Palette generator →

#4187CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva