#4182B9#4182B9

#4182B9 is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.8% C 0.108 H 246.5°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX#4182B9
RGBrgb(65, 130, 185)
HSLhsl(208, 48%, 49%)
HSVhsv(208, 65%, 73%)
CMYKcmyk(64.9%, 29.7%, 0%, 27.5%)
CIE-LABlab(52.50, -3.33, -35.03)
CIE-LCHlch(52.50, 35.18, 264.58°)
OKLaboklab(58.85% -0.043 -0.0988)
OKLCHoklch(58.85% 0.108 246.5)
XYZxyz(18.9163, 20.5900, 48.8669)
Luminance0.2059 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4182B9 #B97841
analogous
#41B9B4 #4182B9 #4146B9
triadic
#4182B9 #B94182 #82B941
tetradic
#4182B9 #B441B9 #B97841 #46B941
square
#4182B9 #B441B9 #B97841 #46B941
split-complementary
#4182B9 #B94146 #B9B441
monochromatic
#21425E #31628C #4182B9 #6CA0CB #99BDDB

Accessibility & contrast

On white

4.10
#4182B9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.12
#4182B9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4182B9
5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4182B9#FFFFFF#000000##000000
##4182B91.004.105.125.12
#FFFFFF4.101.0021.0021.00
#0000005.1221.001.001.00
##0000005.1221.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A84BB
Deuteranopia (green-blind)
#5978B8
Tritanopia (blue-blind)
#008F95
Achromatopsia (no color)
#7D7D7D

Design tokens & code

CSS
--color: #4182b9;
/* rgb */ color: rgb(65, 130, 185);
/* oklch */ color: oklch(58.8% 0.108 246.5);
Tailwind
colors: {
  custom: {
    50: '#81a6ce',
    500: '#4182b9',
    950: '#000000',
  },
}
SCSS
$custom: #4182b9;
$custom-light: #81a6ce;
$custom-dark: #000000;
JSON
{
  "hex": "#4182b9",
  "rgb": {
    "r": 65,
    "g": 130,
    "b": 185
  },
  "hsl": {
    "h": 207.5,
    "s": 48,
    "l": 49.02
  },
  "oklch": {
    "l": 0.58846,
    "c": 0.10777,
    "h": 246.5
  },
  "luminance": 0.20592
}

Semantic roles & 50–950 ramp

primary
#4182B9
secondary
#C7A98F
accent
#8E50D8
background
#F8FAFC
surface
#F0F4F9
border
#CBCED2
text
#0B0F13
muted
#7C7F82

Preview Lab

Preview with #4182B9

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

Preview Lab → · Contrast checker → · Palette generator →

#4182B9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva