#40A9C7#40A9C7

#40A9C7 is a light, moderate cyan. Relative luminance 0.336; OKLCH L 68.7% C 0.104 H 220.4°. Best body text is #000000 at 7.72:1 contrast (WCAG AA passes).

Color values

HEX#40A9C7
RGBrgb(64, 169, 199)
HSLhsl(193, 55%, 52%)
HSVhsv(193, 68%, 78%)
CMYKcmyk(67.8%, 15.1%, 0%, 22%)
CIE-LABlab(64.63, -20.48, -24.12)
CIE-LCHlch(64.63, 31.64, 229.68°)
OKLaboklab(68.69% -0.0792 -0.0673)
OKLCHoklch(68.69% 0.104 220.4)
XYZxyz(26.6069, 33.5865, 59.1024)
Luminance0.3359 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40A9C7 #C75E40
analogous
#40C7A2 #40A9C7 #4066C7
triadic
#40A9C7 #C740A9 #A9C740
tetradic
#40A9C7 #A240C7 #C75E40 #66C740
square
#40A9C7 #A240C7 #C75E40 #66C740
split-complementary
#40A9C7 #C74066 #C7A240
monochromatic
#205C6D #2E849C #40A9C7 #6FBED5 #9FD4E3

Accessibility & contrast

On white

2.72
#40A9C7 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.72
#40A9C7 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A9C7
7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40A9C7#FFFFFF#000000##000000
##40A9C71.002.727.727.72
#FFFFFF2.721.0021.0021.00
#0000007.7221.001.001.00
##0000007.7221.001.001.00

Color blindness preview

Protanopia (red-blind)
#97A5C9
Deuteranopia (green-blind)
#8497C7
Tritanopia (blue-blind)
#00B3B3
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #40a9c7;
/* rgb */ color: rgb(64, 169, 199);
/* oklch */ color: oklch(68.7% 0.104 220.4);
Tailwind
colors: {
  custom: {
    50: '#85c2d8',
    500: '#40a9c7',
    950: '#000000',
  },
}
SCSS
$custom: #40a9c7;
$custom-light: #85c2d8;
$custom-dark: #000000;
JSON
{
  "hex": "#40a9c7",
  "rgb": {
    "r": 64,
    "g": 169,
    "b": 199
  },
  "hsl": {
    "h": 193.333,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.68685,
    "c": 0.10392,
    "h": 220.4
  },
  "luminance": 0.33589
}

Semantic roles & 50–950 ramp

primary
#40A9C7
secondary
#CFA194
accent
#6B4ADE
background
#F8FBFD
surface
#F0F7FA
border
#CBD0D3
text
#0C1214
muted
#7D8183

Preview Lab

Preview with #40A9C7

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

Preview Lab → · Contrast checker → · Palette generator →

#40A9C7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva