#4180CB#4180CB

#4180CB is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.4% C 0.132 H 254.3°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX#4180CB
RGBrgb(65, 128, 203)
HSLhsl(213, 57%, 53%)
HSVhsv(213, 68%, 80%)
CMYKcmyk(68%, 36.9%, 0%, 20.4%)
CIE-LABlab(52.81, 4.11, -44.81)
CIE-LCHlch(52.81, 45.00, 275.24°)
OKLaboklab(59.38% -0.0359 -0.1274)
OKLCHoklch(59.38% 0.132 254.3)
XYZxyz(20.6747, 20.8718, 59.4274)
Luminance0.2087 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4180CB #CB8C41
analogous
#41C5CB #4180CB #4741CB
triadic
#4180CB #CB4180 #80CB41
tetradic
#4180CB #CB41C5 #CB8C41 #41CB47
square
#4180CB #CB41C5 #CB8C41 #41CB47
split-complementary
#4180CB #CB4741 #C5CB41
monochromatic
#1F4572 #2C62A2 #4180CB #71A0D8 #A1C0E5

Accessibility & contrast

On white

4.06
#4180CB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.17
#4180CB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4180CB
5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4180CB#FFFFFF#000000##000000
##4180CB1.004.065.175.17
#FFFFFF4.061.0021.0021.00
#0000005.1721.001.001.00
##0000005.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#5E85CE
Deuteranopia (green-blind)
#4A78C9
Tritanopia (blue-blind)
#00919C
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #4180cb;
/* rgb */ color: rgb(65, 128, 203);
/* oklch */ color: oklch(59.4% 0.132 254.3);
Tailwind
colors: {
  custom: {
    50: '#84a4db',
    500: '#4180cb',
    950: '#000000',
  },
}
SCSS
$custom: #4180cb;
$custom-light: #84a4db;
$custom-dark: #000000;
JSON
{
  "hex": "#4180cb",
  "rgb": {
    "r": 65,
    "g": 128,
    "b": 203
  },
  "hsl": {
    "h": 212.609,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.59383,
    "c": 0.13236,
    "h": 254.3
  },
  "luminance": 0.20874
}

Semantic roles & 50–950 ramp

primary
#4180CB
secondary
#D2B796
accent
#9B48E0
background
#F8FAFD
surface
#F0F3FB
border
#CBCDD4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #4180CB

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

Preview Lab → · Contrast checker → · Palette generator →

#4180CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva