#40BDD8#40BDD8

#40BDD8 is a light, moderate cyan. Relative luminance 0.424; OKLCH L 74.1% C 0.113 H 215.2°. Best body text is #000000 at 9.49:1 contrast (WCAG AA passes).

Color values

HEX#40BDD8
RGBrgb(64, 189, 216)
HSLhsl(191, 66%, 55%)
HSVhsv(191, 70%, 85%)
CMYKcmyk(70.4%, 12.5%, 0%, 15.3%)
CIE-LABlab(71.17, -25.39, -23.48)
CIE-LCHlch(71.17, 34.58, 222.76°)
OKLaboklab(74.14% -0.0926 -0.0654)
OKLCHoklch(74.14% 0.113 215.2)
XYZxyz(32.7014, 42.4393, 71.4206)
Luminance0.4244 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40BDD8 #D85B40
analogous
#40D8A7 #40BDD8 #4071D8
triadic
#40BDD8 #D840BD #BDD840
tetradic
#40BDD8 #A740D8 #D85B40 #71D840
square
#40BDD8 #A740D8 #D85B40 #71D840
split-complementary
#40BDD8 #D84071 #D8A740
monochromatic
#1B7083 #259CB6 #40BDD8 #73CFE2 #A6E0ED

Accessibility & contrast

On white

2.21
#40BDD8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.49
#40BDD8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BDD8
9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40BDD8#FFFFFF#000000##000000
##40BDD81.002.219.499.49
#FFFFFF2.211.0021.0021.00
#0000009.4921.001.001.00
##0000009.4921.001.001.00

Color blindness preview

Protanopia (red-blind)
#AAB7DA
Deuteranopia (green-blind)
#95A8D8
Tritanopia (blue-blind)
#00C7C5
Achromatopsia (no color)
#AEAEAE

Design tokens & code

CSS
--color: #40bdd8;
/* rgb */ color: rgb(64, 189, 216);
/* oklch */ color: oklch(74.1% 0.113 215.2);
Tailwind
colors: {
  custom: {
    50: '#89d1e4',
    500: '#40bdd8',
    950: '#000000',
  },
}
SCSS
$custom: #40bdd8;
$custom-light: #89d1e4;
$custom-dark: #000000;
JSON
{
  "hex": "#40bdd8",
  "rgb": {
    "r": 64,
    "g": 189,
    "b": 216
  },
  "hsl": {
    "h": 190.658,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.74142,
    "c": 0.11335,
    "h": 215.2
  },
  "luminance": 0.42443
}

Semantic roles & 50–950 ramp

primary
#40BDD8
secondary
#DAA59A
accent
#5D3FE9
background
#F9FCFD
surface
#F1F9FB
border
#CBD2D4
text
#0D1415
muted
#7E8283

Preview Lab

Preview with #40BDD8

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

Preview Lab → · Contrast checker → · Palette generator →

#40BDD8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva