#40D5E3#40D5E3

#40D5E3 is a light, vivid teal. Relative luminance 0.542; OKLCH L 80.2% C 0.122 H 204.3°. Best body text is #000000 at 11.85:1 contrast (WCAG AA passes).

Color values

HEX#40D5E3
RGBrgb(64, 213, 227)
HSLhsl(185, 74%, 57%)
HSVhsv(185, 72%, 89%)
CMYKcmyk(71.8%, 6.2%, 0%, 11%)
CIE-LABlab(78.59, -33.75, -18.15)
CIE-LCHlch(78.59, 38.32, 208.28°)
OKLaboklab(80.25% -0.1115 -0.0504)
OKLCHoklch(80.25% 0.122 204.3)
XYZxyz(39.7676, 54.2198, 81.0277)
Luminance0.5423 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40D5E3 #E34E40
analogous
#40E39F #40D5E3 #4084E3
triadic
#40D5E3 #E340D5 #D5E340
tetradic
#40D5E3 #9F40E3 #E34E40 #84E340
square
#40D5E3 #9F40E3 #E34E40 #84E340
split-complementary
#40D5E3 #E34084 #E39F40
monochromatic
#168893 #1DBAC8 #40D5E3 #75E1EB #ABECF3

Accessibility & contrast

On white

1.77
#40D5E3 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.85
#40D5E3 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D5E3
11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40D5E3#FFFFFF#000000##000000
##40D5E31.001.7711.8511.85
#FFFFFF1.771.0021.0021.00
#00000011.8521.001.001.00
##00000011.8521.001.001.00

Color blindness preview

Protanopia (red-blind)
#C4CCE4
Deuteranopia (green-blind)
#ADBBE4
Tritanopia (blue-blind)
#00DED9
Achromatopsia (no color)
#C2C2C2

Design tokens & code

CSS
--color: #40d5e3;
/* rgb */ color: rgb(64, 213, 227);
/* oklch */ color: oklch(80.2% 0.122 204.3);
Tailwind
colors: {
  custom: {
    50: '#8ce2eb',
    500: '#40d5e3',
    950: '#000000',
  },
}
SCSS
$custom: #40d5e3;
$custom-light: #8ce2eb;
$custom-dark: #000000;
JSON
{
  "hex": "#40d5e3",
  "rgb": {
    "r": 64,
    "g": 213,
    "b": 227
  },
  "hsl": {
    "h": 185.153,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.80248,
    "c": 0.12237,
    "h": 204.3
  },
  "luminance": 0.54225
}

Semantic roles & 50–950 ramp

primary
#40D5E3
secondary
#973930
accent
#4737F1
background
#FCFEFE
surface
#F5FCFD
border
#CFD5D5
text
#0E1516
muted
#7F8484

Preview Lab

Preview with #40D5E3

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

Preview Lab → · Contrast checker → · Palette generator →

#40D5E3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva