#40C1DF#40C1DF

#40C1DF is a light, moderate cyan. Relative luminance 0.446; OKLCH L 75.4% C 0.117 H 216.8°. Best body text is #000000 at 9.91:1 contrast (WCAG AA passes).

Color values

HEX#40C1DF
RGBrgb(64, 193, 223)
HSLhsl(191, 71%, 56%)
HSVhsv(191, 71%, 87%)
CMYKcmyk(71.3%, 13.5%, 0%, 12.5%)
CIE-LABlab(72.60, -25.22, -25.11)
CIE-LCHlch(72.60, 35.59, 224.87°)
OKLaboklab(75.37% -0.0938 -0.07)
OKLCHoklch(75.37% 0.117 216.8)
XYZxyz(34.4980, 44.5536, 76.5793)
Luminance0.4456 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40C1DF #DF5E40
analogous
#40DFAE #40C1DF #4072DF
triadic
#40C1DF #DF40C1 #C1DF40
tetradic
#40C1DF #AE40DF #DF5E40 #72DF40
square
#40C1DF #AE40DF #DF5E40 #72DF40
split-complementary
#40C1DF #DF4072 #DFAE40
monochromatic
#18778D #20A3C1 #40C1DF #74D2E8 #A9E3F1

Accessibility & contrast

On white

2.12
#40C1DF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.91
#40C1DF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C1DF
9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40C1DF#FFFFFF#000000##000000
##40C1DF1.002.129.919.91
#FFFFFF2.121.0021.0021.00
#0000009.9121.001.001.00
##0000009.9121.001.001.00

Color blindness preview

Protanopia (red-blind)
#ADBBE1
Deuteranopia (green-blind)
#97ABDF
Tritanopia (blue-blind)
#00CCCA
Achromatopsia (no color)
#B2B2B2

Design tokens & code

CSS
--color: #40c1df;
/* rgb */ color: rgb(64, 193, 223);
/* oklch */ color: oklch(75.4% 0.117 216.8);
Tailwind
colors: {
  custom: {
    50: '#8ad4e9',
    500: '#40c1df',
    950: '#000000',
  },
}
SCSS
$custom: #40c1df;
$custom-light: #8ad4e9;
$custom-dark: #000000;
JSON
{
  "hex": "#40c1df",
  "rgb": {
    "r": 64,
    "g": 193,
    "b": 223
  },
  "hsl": {
    "h": 191.321,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.7537,
    "c": 0.11703,
    "h": 216.8
  },
  "luminance": 0.44558
}

Semantic roles & 50–950 ramp

primary
#40C1DF
secondary
#DEA99D
accent
#5C3AEE
background
#F9FDFE
surface
#F2FAFC
border
#CCD3D5
text
#0D1416
muted
#7E8384

Preview Lab

Preview with #40C1DF

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

Preview Lab → · Contrast checker → · Palette generator →

#40C1DF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva