#40A3D7#40A3D7
#40A3D7 is a light, moderate cyan. Relative luminance 0.322; OKLCH L 68.0% C 0.119 H 235.4°. Best body text is #000000 at 7.44:1 contrast (WCAG AA passes).
Color values
| HEX | #40A3D7 |
|---|---|
| RGB | rgb(64, 163, 215) |
| HSL | hsl(201, 65%, 55%) |
| HSV | hsv(201, 70%, 84%) |
| CMYK | cmyk(70.2%, 24.2%, 0%, 15.7%) |
| CIE-LAB | lab(63.50, -12.07, -34.76) |
| CIE-LCH | lch(63.50, 36.79, 250.85°) |
| OKLab | oklab(67.99% -0.0674 -0.0978) |
| OKLCH | oklch(67.99% 0.119 235.4) |
| XYZ | xyz(27.4725, 32.1876, 69.0418) |
| Luminance | 0.3219 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Azure (survey)
#069AF3
ΔE00 6.31
Deepskyblue
#00BFFF
ΔE00 8.16
Greyblue
#77A1B5
ΔE00 8.78
Sky Blue (survey)
#75BBFD
ΔE00 9.54
Water Blue
#0E87CC
ΔE00 9.77
Dark Sky Blue
#448EE4
ΔE00 9.80
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40A3D7 #D77440
analogous
#40D7BF #40A3D7 #4058D7
triadic
#40A3D7 #D740A3 #A3D740
tetradic
#40A3D7 #BF40D7 #D77440 #58D740
square
#40A3D7 #BF40D7 #D77440 #58D740
split-complementary
#40A3D7 #D74058 #D7BF40
monochromatic
#1B5E81 #2683B4 #40A3D7 #73BBE2 #A5D4EC
Accessibility & contrast
On white
2.82
#40A3D7 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.44
#40A3D7 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #40A3D7
7.44:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40A3D7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##40A3D7 | 1.00 | 2.82 | 7.44 | 7.44 |
| #FFFFFF | 2.82 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.44 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.44 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8AA2D9
Deuteranopia (green-blind)
#7593D6
Tritanopia (blue-blind)
#00B1B5
Achromatopsia (no color)
#9A9A9A
Design tokens & code
CSS
--color: #40a3d7; /* rgb */ color: rgb(64, 163, 215); /* oklch */ color: oklch(68.0% 0.119 235.4);
Tailwind
colors: {
custom: {
50: '#87bee3',
500: '#40a3d7',
950: '#000000',
},
}SCSS
$custom: #40a3d7; $custom-light: #87bee3; $custom-dark: #000000;
JSON
{
"hex": "#40a3d7",
"rgb": {
"r": 64,
"g": 163,
"b": 215
},
"hsl": {
"h": 200.662,
"s": 65.368,
"l": 54.706
},
"oklch": {
"l": 0.67988,
"c": 0.11876,
"h": 235.4
},
"luminance": 0.32191
}Semantic roles & 50–950 ramp
primary
#40A3D7
secondary
#D9AF9A
accent
#7A3FE8
background
#F8FBFD
surface
#F0F6FB
border
#CBD0D4
text
#0D1215
muted
#7D8183