#40A9CA#40A9CA
#40A9CA is a light, moderate cyan. Relative luminance 0.337; OKLCH L 68.8% C 0.106 H 222.5°. Best body text is #000000 at 7.75:1 contrast (WCAG AA passes).
Color values
| HEX | #40A9CA |
|---|---|
| RGB | rgb(64, 169, 202) |
| HSL | hsl(194, 57%, 52%) |
| HSV | hsv(194, 68%, 79%) |
| CMYK | cmyk(68.3%, 16.3%, 0%, 20.8%) |
| CIE-LAB | lab(64.75, -19.52, -25.62) |
| CIE-LCH | lch(64.75, 32.21, 232.69°) |
| OKLab | oklab(68.81% -0.078 -0.0715) |
| OKLCH | oklch(68.81% 0.106 222.5) |
| XYZ | xyz(26.9586, 33.7272, 60.9549) |
| Luminance | 0.3373 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 6.83
Greyblue
#77A1B5
ΔE00 7.49
Deepskyblue
#00BFFF
ΔE00 9.08
Bright Sky Blue
#02CCFE
ΔE00 9.87
Bluegrey
#85A3B2
ΔE00 10.14
Cadetblue
#5F9EA0
ΔE00 11.04
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40A9CA #CA6140
analogous
#40CAA6 #40A9CA #4064CA
triadic
#40A9CA #CA40A9 #A9CA40
tetradic
#40A9CA #A640CA #CA6140 #64CA40
square
#40A9CA #A640CA #CA6140 #64CA40
split-complementary
#40A9CA #CA4064 #CAA640
monochromatic
#1F5D70 #2C85A0 #40A9CA #70BFD7 #A0D4E5
Accessibility & contrast
On white
2.71
#40A9CA on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.75
#40A9CA on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #40A9CA
7.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40A9CA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##40A9CA | 1.00 | 2.71 | 7.75 | 7.75 |
| #FFFFFF | 2.71 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.75 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.75 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#96A5CC
Deuteranopia (green-blind)
#8397CA
Tritanopia (blue-blind)
#00B3B4
Achromatopsia (no color)
#9D9D9D
Design tokens & code
CSS
--color: #40a9ca; /* rgb */ color: rgb(64, 169, 202); /* oklch */ color: oklch(68.8% 0.106 222.5);
Tailwind
colors: {
custom: {
50: '#85c2da',
500: '#40a9ca',
950: '#000000',
},
}SCSS
$custom: #40a9ca; $custom-light: #85c2da; $custom-dark: #000000;
JSON
{
"hex": "#40a9ca",
"rgb": {
"r": 64,
"g": 169,
"b": 202
},
"hsl": {
"h": 194.348,
"s": 56.557,
"l": 52.157
},
"oklch": {
"l": 0.68812,
"c": 0.10586,
"h": 222.5
},
"luminance": 0.3373
}Semantic roles & 50–950 ramp
primary
#40A9CA
secondary
#D1A395
accent
#6C48E0
background
#F8FBFD
surface
#F0F7FA
border
#CBD0D3
text
#0C1214
muted
#7D8183