#66EFFC#66EFFC
#66EFFC is a very light, moderate teal. Relative luminance 0.716; OKLCH L 88.2% C 0.119 H 203.9°. Best body text is #000000 at 15.32:1 contrast (WCAG AA passes).
Color values
| HEX | #66EFFC |
|---|---|
| RGB | rgb(102, 239, 252) |
| HSL | hsl(185, 96%, 69%) |
| HSV | hsv(185, 60%, 99%) |
| CMYK | cmyk(59.5%, 5.2%, 0%, 1.2%) |
| CIE-LAB | lab(87.77, -33.38, -17.46) |
| CIE-LCH | lch(87.77, 37.67, 207.60°) |
| OKLab | oklab(88.18% -0.1092 -0.0483) |
| OKLCH | oklch(88.18% 0.119 203.9) |
| XYZ | xyz(53.9093, 71.5805, 103.0519) |
| Luminance | 0.7159 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Robin'S Egg
#6DEDFD
ΔE00 1.41
Robin Egg Blue
#8AF1FE
ΔE00 3.08
Bright Light Blue
#26F7FD
ΔE00 4.51
Robin'S Egg Blue
#98EFF9
ΔE00 4.53
Bright Cyan
#41FDFE
ΔE00 5.78
Aqua Blue
#02D8E9
ΔE00 6.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66EFFC #FC7366
analogous
#66FCBE #66EFFC #66A4FC
triadic
#66EFFC #FC66EF #EFFC66
tetradic
#66EFFC #BE66FC #FC7366 #A4FC66
square
#66EFFC #BE66FC #FC7366 #A4FC66
split-complementary
#66EFFC #FC66A4 #FCBE66
monochromatic
#04D0E3 #2AE9FB #66EFFC #A2F5FD #DEFCFE
Accessibility & contrast
On white
1.37
#66EFFC on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
15.32
#66EFFC on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66EFFC
15.32:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66EFFC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66EFFC | 1.00 | 1.37 | 15.32 | 15.32 |
| #FFFFFF | 1.37 | 1.00 | 21.00 | 21.00 |
| #000000 | 15.32 | 21.00 | 1.00 | 1.00 |
| ##000000 | 15.32 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#DEE6FD
Deuteranopia (green-blind)
#C7D5FD
Tritanopia (blue-blind)
#00F8F3
Achromatopsia (no color)
#DCDCDC
Design tokens & code
CSS
--color: #66effc; /* rgb */ color: rgb(102, 239, 252); /* oklch */ color: oklch(88.2% 0.119 203.9);
Tailwind
colors: {
custom: {
50: '#a0f4fd',
500: '#66effc',
950: '#000000',
},
}SCSS
$custom: #66effc; $custom-light: #a0f4fd; $custom-dark: #000000;
JSON
{
"hex": "#66effc",
"rgb": {
"r": 102,
"g": 239,
"b": 252
},
"hsl": {
"h": 185.2,
"s": 96.154,
"l": 69.412
},
"oklch": {
"l": 0.88177,
"c": 0.11942,
"h": 203.9
},
"luminance": 0.71586
}Semantic roles & 50–950 ramp
primary
#66EFFC
secondary
#D63E30
accent
#1400E6
background
#FDFFFF
surface
#F7FEFF
border
#D0D6D7
text
#101717
muted
#818585