#40A8D0#40A8D0

#40A8D0 is a light, moderate cyan. Relative luminance 0.336; OKLCH L 68.8% C 0.110 H 227.4°. Best body text is #000000 at 7.73:1 contrast (WCAG AA passes).

Color values

HEX#40A8D0
RGBrgb(64, 168, 208)
HSLhsl(197, 61%, 53%)
HSVhsv(197, 69%, 82%)
CMYKcmyk(69.2%, 19.2%, 0%, 18.4%)
CIE-LABlab(64.68, -17.07, -29.04)
CIE-LCHlch(64.68, 33.69, 239.55°)
OKLaboklab(68.84% -0.0748 -0.0813)
OKLCHoklch(68.84% 0.11 227.4)
XYZxyz(27.4976, 33.6462, 64.7075)
Luminance0.3365 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40A8D0 #D06840
analogous
#40D0B0 #40A8D0 #4060D0
triadic
#40A8D0 #D040A8 #A8D040
tetradic
#40A8D0 #B040D0 #D06840 #60D040
square
#40A8D0 #B040D0 #D06840 #60D040
split-complementary
#40A8D0 #D04060 #D0B040
monochromatic
#1E5F78 #2A86A9 #40A8D0 #71BEDC #A2D5E8

Accessibility & contrast

On white

2.72
#40A8D0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.73
#40A8D0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8D0
7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40A8D0#FFFFFF#000000##000000
##40A8D01.002.727.737.73
#FFFFFF2.721.0021.0021.00
#0000007.7321.001.001.00
##0000007.7321.001.001.00

Color blindness preview

Protanopia (red-blind)
#93A5D2
Deuteranopia (green-blind)
#7F97CF
Tritanopia (blue-blind)
#00B3B5
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #40a8d0;
/* rgb */ color: rgb(64, 168, 208);
/* oklch */ color: oklch(68.8% 0.110 227.4);
Tailwind
colors: {
  custom: {
    50: '#86c2de',
    500: '#40a8d0',
    950: '#000000',
  },
}
SCSS
$custom: #40a8d0;
$custom-light: #86c2de;
$custom-dark: #000000;
JSON
{
  "hex": "#40a8d0",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 208
  },
  "hsl": {
    "h": 196.667,
    "s": 60.504,
    "l": 53.333
  },
  "oklch": {
    "l": 0.68837,
    "c": 0.11049,
    "h": 227.4
  },
  "luminance": 0.33649
}

Semantic roles & 50–950 ramp

primary
#40A8D0
secondary
#D5A897
accent
#7044E4
background
#F8FBFD
surface
#F0F7FB
border
#CBD0D4
text
#0C1215
muted
#7D8183

Preview Lab

Preview with #40A8D0

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

Preview Lab → · Contrast checker → · Palette generator →

#40A8D0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva