#40B2D2#40B2D2

#40B2D2 is a light, moderate cyan. Relative luminance 0.376; OKLCH L 71.3% C 0.110 H 220.3°. Best body text is #000000 at 8.52:1 contrast (WCAG AA passes).

Color values

HEX#40B2D2
RGBrgb(64, 178, 210)
HSLhsl(193, 62%, 54%)
HSVhsv(193, 70%, 82%)
CMYKcmyk(69.5%, 15.2%, 0%, 17.6%)
CIE-LABlab(67.71, -21.67, -25.49)
CIE-LCHlch(67.71, 33.45, 229.63°)
OKLaboklab(71.29% -0.084 -0.0711)
OKLCHoklch(71.29% 0.11 220.3)
XYZxyz(29.6628, 37.5806, 66.6507)
Luminance0.3758 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40B2D2 #D26040
analogous
#40D2A9 #40B2D2 #4069D2
triadic
#40B2D2 #D240B2 #B2D240
tetradic
#40B2D2 #A940D2 #D26040 #69D240
square
#40B2D2 #A940D2 #D26040 #69D240
split-complementary
#40B2D2 #D24069 #D2A940
monochromatic
#1D667B #298FAC #40B2D2 #72C6DE #A3DAE9

Accessibility & contrast

On white

2.47
#40B2D2 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.52
#40B2D2 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B2D2
8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40B2D2#FFFFFF#000000##000000
##40B2D21.002.478.528.52
#FFFFFF2.471.0021.0021.00
#0000008.5221.001.001.00
##0000008.5221.001.001.00

Color blindness preview

Protanopia (red-blind)
#9FADD4
Deuteranopia (green-blind)
#8A9FD2
Tritanopia (blue-blind)
#00BCBC
Achromatopsia (no color)
#A5A5A5

Design tokens & code

CSS
--color: #40b2d2;
/* rgb */ color: rgb(64, 178, 210);
/* oklch */ color: oklch(71.3% 0.110 220.3);
Tailwind
colors: {
  custom: {
    50: '#87c9df',
    500: '#40b2d2',
    950: '#000000',
  },
}
SCSS
$custom: #40b2d2;
$custom-light: #87c9df;
$custom-dark: #000000;
JSON
{
  "hex": "#40b2d2",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 210
  },
  "hsl": {
    "h": 193.151,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.71289,
    "c": 0.11009,
    "h": 220.3
  },
  "luminance": 0.37584
}

Semantic roles & 50–950 ramp

primary
#40B2D2
secondary
#D6A598
accent
#6643E5
background
#F9FCFD
surface
#F1F8FB
border
#CBD1D4
text
#0D1315
muted
#7E8283

Preview Lab

Preview with #40B2D2

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

Preview Lab → · Contrast checker → · Palette generator →

#40B2D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva