#40A3D4#40A3D4

#40A3D4 is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.8% C 0.116 H 233.8°. Best body text is #000000 at 7.41:1 contrast (WCAG AA passes).

Color values

HEX#40A3D4
RGBrgb(64, 163, 212)
HSLhsl(200, 63%, 54%)
HSVhsv(200, 70%, 83%)
CMYKcmyk(69.8%, 23.1%, 0%, 16.9%)
CIE-LABlab(63.37, -13.07, -33.29)
CIE-LCHlch(63.37, 35.76, 248.57°)
OKLaboklab(67.85% -0.0684 -0.0936)
OKLCHoklch(67.85% 0.116 233.8)
XYZxyz(27.0905, 32.0348, 67.0302)
Luminance0.3204 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40A3D4 #D47140
analogous
#40D4BB #40A3D4 #4059D4
triadic
#40A3D4 #D440A3 #A3D440
tetradic
#40A3D4 #BB40D4 #D47140 #59D440
square
#40A3D4 #BB40D4 #D47140 #59D440
split-complementary
#40A3D4 #D44059 #D4BB40
monochromatic
#1C5D7D #2782AF #40A3D4 #72BBDF #A4D3EA

Accessibility & contrast

On white

2.83
#40A3D4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.41
#40A3D4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A3D4
7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40A3D4#FFFFFF#000000##000000
##40A3D41.002.837.417.41
#FFFFFF2.831.0021.0021.00
#0000007.4121.001.001.00
##0000007.4121.001.001.00

Color blindness preview

Protanopia (red-blind)
#8BA2D6
Deuteranopia (green-blind)
#7793D3
Tritanopia (blue-blind)
#00B0B3
Achromatopsia (no color)
#999999

Design tokens & code

CSS
--color: #40a3d4;
/* rgb */ color: rgb(64, 163, 212);
/* oklch */ color: oklch(67.8% 0.116 233.8);
Tailwind
colors: {
  custom: {
    50: '#86bee1',
    500: '#40a3d4',
    950: '#000000',
  },
}
SCSS
$custom: #40a3d4;
$custom-light: #86bee1;
$custom-dark: #000000;
JSON
{
  "hex": "#40a3d4",
  "rgb": {
    "r": 64,
    "g": 163,
    "b": 212
  },
  "hsl": {
    "h": 199.865,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.67846,
    "c": 0.11589,
    "h": 233.8
  },
  "luminance": 0.32038
}

Semantic roles & 50–950 ramp

primary
#40A3D4
secondary
#D7AD98
accent
#7842E6
background
#F8FBFD
surface
#F0F6FB
border
#CBD0D4
text
#0D1215
muted
#7D8183

Preview Lab

Preview with #40A3D4

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

Preview Lab → · Contrast checker → · Palette generator →

#40A3D4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva