#40ABD4#40ABD4
#40ABD4 is a light, moderate cyan. Relative luminance 0.350; OKLCH L 69.7% C 0.113 H 227.4°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #40ABD4 |
|---|---|
| RGB | rgb(64, 171, 212) |
| HSL | hsl(197, 63%, 54%) |
| HSV | hsv(197, 70%, 83%) |
| CMYK | cmyk(69.8%, 19.3%, 0%, 16.9%) |
| CIE-LAB | lab(65.72, -17.37, -29.65) |
| CIE-LCH | lch(65.72, 34.36, 239.64°) |
| OKLab | oklab(69.72% -0.0763 -0.083) |
| OKLCH | oklch(69.72% 0.113 227.4) |
| XYZ | xyz(28.5561, 34.9661, 67.5187) |
| Luminance | 0.3497 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deepskyblue
#00BFFF
ΔE00 7.00
Greyblue
#77A1B5
ΔE00 7.97
Turquoise Blue
#06B1C4
ΔE00 8.91
Bright Sky Blue
#02CCFE
ΔE00 8.94
Lightblue (survey)
#7BC8F6
ΔE00 9.52
Bluegrey
#85A3B2
ΔE00 10.48
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40ABD4 #D46940
analogous
#40D4B3 #40ABD4 #4061D4
triadic
#40ABD4 #D440AB #ABD440
tetradic
#40ABD4 #B340D4 #D46940 #61D440
square
#40ABD4 #B340D4 #D46940 #61D440
split-complementary
#40ABD4 #D44061 #D4B340
monochromatic
#1C627D #278AAF #40ABD4 #72C1DF #A4D7EA
Accessibility & contrast
On white
2.63
#40ABD4 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.99
#40ABD4 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #40ABD4
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40ABD4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##40ABD4 | 1.00 | 2.63 | 7.99 | 7.99 |
| #FFFFFF | 2.63 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#95A8D6
Deuteranopia (green-blind)
#8199D3
Tritanopia (blue-blind)
#00B7B8
Achromatopsia (no color)
#A0A0A0
Design tokens & code
CSS
--color: #40abd4; /* rgb */ color: rgb(64, 171, 212); /* oklch */ color: oklch(69.7% 0.113 227.4);
Tailwind
colors: {
custom: {
50: '#87c4e1',
500: '#40abd4',
950: '#000000',
},
}SCSS
$custom: #40abd4; $custom-light: #87c4e1; $custom-dark: #000000;
JSON
{
"hex": "#40abd4",
"rgb": {
"r": 64,
"g": 171,
"b": 212
},
"hsl": {
"h": 196.622,
"s": 63.248,
"l": 54.118
},
"oklch": {
"l": 0.69722,
"c": 0.11279,
"h": 227.4
},
"luminance": 0.34969
}Semantic roles & 50–950 ramp
primary
#40ABD4
secondary
#D7AA98
accent
#6F42E6
background
#F8FCFD
surface
#F0F8FB
border
#CBD1D4
text
#0D1215
muted
#7D8183