#40BBD7#40BBD7

#40BBD7 is a light, moderate cyan. Relative luminance 0.415; OKLCH L 73.6% C 0.113 H 216.2°. Best body text is #000000 at 9.31:1 contrast (WCAG AA passes).

Color values

HEX#40BBD7
RGBrgb(64, 187, 215)
HSLhsl(191, 65%, 55%)
HSVhsv(191, 70%, 84%)
CMYKcmyk(70.2%, 13%, 0%, 15.7%)
CIE-LABlab(70.55, -24.69, -23.88)
CIE-LCHlch(70.55, 34.35, 224.05°)
OKLaboklab(73.63% -0.091 -0.0666)
OKLCHoklch(73.63% 0.113 216.2)
XYZxyz(32.1453, 41.5332, 70.5994)
Luminance0.4154 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40BBD7 #D75C40
analogous
#40D7A8 #40BBD7 #406FD7
triadic
#40BBD7 #D740BB #BBD740
tetradic
#40BBD7 #A840D7 #D75C40 #6FD740
square
#40BBD7 #A840D7 #D75C40 #6FD740
split-complementary
#40BBD7 #D7406F #D7A840
monochromatic
#1B6F81 #269AB4 #40BBD7 #73CDE2 #A5DFEC

Accessibility & contrast

On white

2.26
#40BBD7 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.31
#40BBD7 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BBD7
9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40BBD7#FFFFFF#000000##000000
##40BBD71.002.269.319.31
#FFFFFF2.261.0021.0021.00
#0000009.3121.001.001.00
##0000009.3121.001.001.00

Color blindness preview

Protanopia (red-blind)
#A8B5D9
Deuteranopia (green-blind)
#93A6D7
Tritanopia (blue-blind)
#00C5C4
Achromatopsia (no color)
#ADADAD

Design tokens & code

CSS
--color: #40bbd7;
/* rgb */ color: rgb(64, 187, 215);
/* oklch */ color: oklch(73.6% 0.113 216.2);
Tailwind
colors: {
  custom: {
    50: '#88cfe3',
    500: '#40bbd7',
    950: '#000000',
  },
}
SCSS
$custom: #40bbd7;
$custom-light: #88cfe3;
$custom-dark: #000000;
JSON
{
  "hex": "#40bbd7",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 215
  },
  "hsl": {
    "h": 191.126,
    "s": 65.368,
    "l": 54.706
  },
  "oklch": {
    "l": 0.73628,
    "c": 0.11275,
    "h": 216.2
  },
  "luminance": 0.41537
}

Semantic roles & 50–950 ramp

primary
#40BBD7
secondary
#D9A59A
accent
#5F3FE8
background
#F9FCFD
surface
#F1F9FB
border
#CBD2D4
text
#0D1415
muted
#7E8283

Preview Lab

Preview with #40BBD7

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

Preview Lab → · Contrast checker → · Palette generator →

#40BBD7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva