#66F5EF#66F5EF
#66F5EF is a very light, vivid teal. Relative luminance 0.744; OKLCH L 89.1% C 0.123 H 191.3°. Best body text is #000000 at 15.87:1 contrast (WCAG AA passes).
Color values
| HEX | #66F5EF |
|---|---|
| RGB | rgb(102, 245, 239) |
| HSL | hsl(177, 88%, 68%) |
| HSV | hsv(177, 58%, 96%) |
| CMYK | cmyk(58.4%, 0%, 2.4%, 3.9%) |
| CIE-LAB | lab(89.09, -39.62, -8.68) |
| CIE-LCH | lch(89.09, 40.56, 192.36°) |
| OKLab | oklab(89.12% -0.1206 -0.0242) |
| OKLCH | oklch(89.12% 0.123 191.3) |
| XYZ | xyz(53.7051, 74.3560, 93.1665) |
| Luminance | 0.7436 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Bright Cyan
#41FDFE
ΔE00 3.20
Bright Turquoise
#0FFEF9
ΔE00 3.43
Aqua
#00FFFF
ΔE00 3.89
Bright Light Blue
#26F7FD
ΔE00 4.28
Bright Aqua
#0BF9EA
ΔE00 4.35
Turquoise
#40E0D0
ΔE00 6.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66F5EF #F5666C
analogous
#66F5A8 #66F5EF #66B3F5
triadic
#66F5EF #EF66F5 #F5EF66
tetradic
#66F5EF #A866F5 #F5666C #B3F566
square
#66F5EF #A866F5 #F5666C #B3F566
split-complementary
#66F5EF #F566B3 #F5A866
monochromatic
#0ED3CB #2DF1E9 #66F5EF #9FF9F5 #D9FDFB
Accessibility & contrast
On white
1.32
#66F5EF on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
15.87
#66F5EF on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66F5EF
15.87:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66F5EF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66F5EF | 1.00 | 1.32 | 15.87 | 15.87 |
| #FFFFFF | 1.32 | 1.00 | 21.00 | 21.00 |
| #000000 | 15.87 | 21.00 | 1.00 | 1.00 |
| ##000000 | 15.87 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#E8E9EF
Deuteranopia (green-blind)
#D1D9F0
Tritanopia (blue-blind)
#00FBF3
Achromatopsia (no color)
#E0E0E0
Design tokens & code
CSS
--color: #66f5ef; /* rgb */ color: rgb(102, 245, 239); /* oklch */ color: oklch(89.1% 0.123 191.3);
Tailwind
colors: {
custom: {
50: '#a0f9f4',
500: '#66f5ef',
950: '#000000',
},
}SCSS
$custom: #66f5ef; $custom-light: #a0f9f4; $custom-dark: #000000;
JSON
{
"hex": "#66f5ef",
"rgb": {
"r": 102,
"g": 245,
"b": 239
},
"hsl": {
"h": 177.483,
"s": 87.73,
"l": 68.039
},
"oklch": {
"l": 0.89121,
"c": 0.12298,
"h": 191.3
},
"luminance": 0.74362
}Semantic roles & 50–950 ramp
primary
#66F5EF
secondary
#CE3138
accent
#010BE4
background
#FDFFFF
surface
#F7FFFE
border
#D0D7D6
text
#101717
muted
#818585