#51E1CB#51E1CB
#51E1CB is a very light, vivid teal. Relative luminance 0.599; OKLCH L 82.7% C 0.126 H 181.0°. Best body text is #000000 at 12.98:1 contrast (WCAG AA passes).
Color values
| HEX | #51E1CB |
|---|---|
| RGB | rgb(81, 225, 203) |
| HSL | hsl(171, 71%, 60%) |
| HSV | hsv(171, 64%, 88%) |
| CMYK | cmyk(64%, 0%, 9.8%, 11.8%) |
| CIE-LAB | lab(81.79, -43.42, -0.56) |
| CIE-LCH | lch(81.79, 43.43, 180.74°) |
| OKLab | oklab(82.72% -0.1263 -0.0022) |
| OKLCH | oklch(82.72% 0.126 181) |
| XYZ | xyz(41.0930, 59.9071, 65.8859) |
| Luminance | 0.5991 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Turquoise
#40E0D0
ΔE00 2.15
Aqua (survey)
#13EAC9
ΔE00 3.94
Tiffany Blue
#7BF2DA
ΔE00 4.68
Aquamarine (survey)
#04D8B2
ΔE00 5.66
Seafoam Blue
#78D1B6
ΔE00 6.04
Bright Aqua
#0BF9EA
ΔE00 6.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#51E1CB #E15167
analogous
#51E183 #51E1CB #51AFE1
triadic
#51E1CB #CB51E1 #E1CB51
tetradic
#51E1CB #8351E1 #E15167 #AFE151
square
#51E1CB #8351E1 #E15167 #AFE151
split-complementary
#51E1CB #E151AF #E18351
monochromatic
#1B9D89 #24D1B6 #51E1CB #85EADB #B9F3EA
Accessibility & contrast
On white
1.62
#51E1CB on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
12.98
#51E1CB on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #51E1CB
12.98:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##51E1CB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##51E1CB | 1.00 | 1.62 | 12.98 | 12.98 |
| #FFFFFF | 1.62 | 1.00 | 21.00 | 21.00 |
| #000000 | 12.98 | 21.00 | 1.00 | 1.00 |
| ##000000 | 12.98 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#D7D4CA
Deuteranopia (green-blind)
#C2C5CD
Tritanopia (blue-blind)
#00E5DA
Achromatopsia (no color)
#CBCBCB
Design tokens & code
CSS
--color: #51e1cb; /* rgb */ color: rgb(81, 225, 203); /* oklch */ color: oklch(82.7% 0.126 181.0);
Tailwind
colors: {
custom: {
50: '#92ebda',
500: '#51e1cb',
950: '#000000',
},
}SCSS
$custom: #51e1cb; $custom-light: #92ebda; $custom-dark: #000000;
JSON
{
"hex": "#51e1cb",
"rgb": {
"r": 81,
"g": 225,
"b": 203
},
"hsl": {
"h": 170.833,
"s": 70.588,
"l": 60
},
"oklch": {
"l": 0.82719,
"c": 0.1263,
"h": 181
},
"luminance": 0.59912
}Semantic roles & 50–950 ramp
primary
#51E1CB
secondary
#A03646
accent
#3A56ED
background
#FCFEFE
surface
#F5FDFB
border
#CFD5D4
text
#0E1614
muted
#7F8483