#40ABD5#40ABD5
#40ABD5 is a light, moderate cyan. Relative luminance 0.350; OKLCH L 69.8% C 0.114 H 228.0°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).
Color values
| HEX | #40ABD5 |
|---|---|
| RGB | rgb(64, 171, 213) |
| HSL | hsl(197, 64%, 54%) |
| HSV | hsv(197, 70%, 84%) |
| CMYK | cmyk(70%, 19.7%, 0%, 16.5%) |
| CIE-LAB | lab(65.76, -17.05, -30.14) |
| CIE-LCH | lch(65.76, 34.63, 240.51°) |
| OKLab | oklab(69.77% -0.0759 -0.0845) |
| OKLCH | oklch(69.77% 0.114 228) |
| XYZ | xyz(28.6827, 35.0167, 68.1851) |
| Luminance | 0.3502 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deepskyblue
#00BFFF
ΔE00 6.83
Greyblue
#77A1B5
ΔE00 8.05
Bright Sky Blue
#02CCFE
ΔE00 8.94
Turquoise Blue
#06B1C4
ΔE00 9.20
Lightblue (survey)
#7BC8F6
ΔE00 9.41
Sky Blue (survey)
#75BBFD
ΔE00 10.48
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40ABD5 #D56A40
analogous
#40D5B5 #40ABD5 #4061D5
triadic
#40ABD5 #D540AB #ABD540
tetradic
#40ABD5 #B540D5 #D56A40 #61D540
square
#40ABD5 #B540D5 #D56A40 #61D540
split-complementary
#40ABD5 #D54061 #D5B540
monochromatic
#1C637F #278AB1 #40ABD5 #72C1E0 #A4D7EB
Accessibility & contrast
On white
2.62
#40ABD5 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.00
#40ABD5 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #40ABD5
8.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40ABD5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##40ABD5 | 1.00 | 2.62 | 8.00 | 8.00 |
| #FFFFFF | 2.62 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.00 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.00 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#95A8D7
Deuteranopia (green-blind)
#8099D4
Tritanopia (blue-blind)
#00B7B9
Achromatopsia (no color)
#A0A0A0
Design tokens & code
CSS
--color: #40abd5; /* rgb */ color: rgb(64, 171, 213); /* oklch */ color: oklch(69.8% 0.114 228.0);
Tailwind
colors: {
custom: {
50: '#87c4e2',
500: '#40abd5',
950: '#000000',
},
}SCSS
$custom: #40abd5; $custom-light: #87c4e2; $custom-dark: #000000;
JSON
{
"hex": "#40abd5",
"rgb": {
"r": 64,
"g": 171,
"b": 213
},
"hsl": {
"h": 196.913,
"s": 63.948,
"l": 54.314
},
"oklch": {
"l": 0.69766,
"c": 0.11358,
"h": 228
},
"luminance": 0.3502
}Semantic roles & 50–950 ramp
primary
#40ABD5
secondary
#D8AB99
accent
#7041E7
background
#F9FCFD
surface
#F1F8FB
border
#CBD1D4
text
#0D1215
muted
#7E8183