#40A8DA#40A8DA

#40A8DA is a light, moderate cyan. Relative luminance 0.342; OKLCH L 69.3% C 0.119 H 233.3°. Best body text is #000000 at 7.83:1 contrast (WCAG AA passes).

Color values

HEX#40A8DA
RGBrgb(64, 168, 218)
HSLhsl(199, 68%, 55%)
HSVhsv(199, 71%, 85%)
CMYKcmyk(70.6%, 22.9%, 0%, 14.5%)
CIE-LABlab(65.08, -13.80, -33.95)
CIE-LCHlch(65.08, 36.65, 247.88°)
OKLaboklab(69.29% -0.0712 -0.0954)
OKLCHoklch(69.29% 0.119 233.3)
XYZxyz(28.7668, 34.1540, 71.3924)
Luminance0.3416 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40A8DA #DA7240
analogous
#40DABF #40A8DA #405BDA
triadic
#40A8DA #DA40A8 #A8DA40
tetradic
#40A8DA #BF40DA #DA7240 #5BDA40
square
#40A8DA #BF40DA #DA7240 #5BDA40
split-complementary
#40A8DA #DA405B #DABF40
monochromatic
#1A6386 #2489B9 #40A8DA #73BFE4 #A7D7EE

Accessibility & contrast

On white

2.68
#40A8DA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.83
#40A8DA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8DA
7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40A8DA#FFFFFF#000000##000000
##40A8DA1.002.687.837.83
#FFFFFF2.681.0021.0021.00
#0000007.8321.001.001.00
##0000007.8321.001.001.00

Color blindness preview

Protanopia (red-blind)
#8FA6DC
Deuteranopia (green-blind)
#7A97D9
Tritanopia (blue-blind)
#00B5B9
Achromatopsia (no color)
#9E9E9E

Design tokens & code

CSS
--color: #40a8da;
/* rgb */ color: rgb(64, 168, 218);
/* oklch */ color: oklch(69.3% 0.119 233.3);
Tailwind
colors: {
  custom: {
    50: '#87c1e5',
    500: '#40a8da',
    950: '#000000',
  },
}
SCSS
$custom: #40a8da;
$custom-light: #87c1e5;
$custom-dark: #000000;
JSON
{
  "hex": "#40a8da",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 218
  },
  "hsl": {
    "h": 199.481,
    "s": 67.544,
    "l": 55.294
  },
  "oklch": {
    "l": 0.69293,
    "c": 0.11908,
    "h": 233.3
  },
  "luminance": 0.34157
}

Semantic roles & 50–950 ramp

primary
#40A8DA
secondary
#DBB09B
accent
#763DEA
background
#F9FBFE
surface
#F1F7FC
border
#CBD0D5
text
#0D1215
muted
#7E8184

Preview Lab

Preview with #40A8DA

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

Preview Lab → · Contrast checker → · Palette generator →

#40A8DA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva