#40A6BE#40A6BE

#40A6BE is a light, moderate cyan. Relative luminance 0.321; OKLCH L 67.6% C 0.099 H 216.3°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX#40A6BE
RGBrgb(64, 166, 190)
HSLhsl(191, 50%, 50%)
HSVhsv(191, 66%, 75%)
CMYKcmyk(66.3%, 12.6%, 0%, 25.5%)
CIE-LABlab(63.41, -21.74, -20.99)
CIE-LCHlch(63.41, 30.21, 224.00°)
OKLaboklab(67.59% -0.0796 -0.0584)
OKLCHoklch(67.59% 0.099 216.3)
XYZxyz(25.0410, 32.0774, 53.5771)
Luminance0.3208 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40A6BE #BE5840
analogous
#40BE97 #40A6BE #4067BE
triadic
#40A6BE #BE40A6 #A6BE40
tetradic
#40A6BE #9740BE #BE5840 #67BE40
square
#40A6BE #9740BE #BE5840 #67BE40
split-complementary
#40A6BE #BE4067 #BE9740
monochromatic
#215662 #317E90 #40A6BE #6DBCCE #9BD1DD

Accessibility & contrast

On white

2.83
#40A6BE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.42
#40A6BE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A6BE
7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40A6BE#FFFFFF#000000##000000
##40A6BE1.002.837.427.42
#FFFFFF2.831.0021.0021.00
#0000007.4221.001.001.00
##0000007.4221.001.001.00

Color blindness preview

Protanopia (red-blind)
#96A1BF
Deuteranopia (green-blind)
#8494BE
Tritanopia (blue-blind)
#00AFAD
Achromatopsia (no color)
#999999

Design tokens & code

CSS
--color: #40a6be;
/* rgb */ color: rgb(64, 166, 190);
/* oklch */ color: oklch(67.6% 0.099 216.3);
Tailwind
colors: {
  custom: {
    50: '#84c0d1',
    500: '#40a6be',
    950: '#000000',
  },
}
SCSS
$custom: #40a6be;
$custom-light: #84c0d1;
$custom-dark: #000000;
JSON
{
  "hex": "#40a6be",
  "rgb": {
    "r": 64,
    "g": 166,
    "b": 190
  },
  "hsl": {
    "h": 191.429,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.67592,
    "c": 0.09875,
    "h": 216.3
  },
  "luminance": 0.3208
}

Semantic roles & 50–950 ramp

primary
#40A6BE
secondary
#C99B90
accent
#694FD9
background
#F8FBFC
surface
#F0F7F9
border
#CBD0D2
text
#0C1214
muted
#7D8182

Preview Lab

Preview with #40A6BE

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

Preview Lab → · Contrast checker → · Palette generator →

#40A6BE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva