#51C8DB#51C8DB
#51C8DB is a light, moderate teal. Relative luminance 0.482; OKLCH L 77.3% C 0.108 H 209.7°. Best body text is #000000 at 10.63:1 contrast (WCAG AA passes).
Color values
| HEX | #51C8DB |
|---|---|
| RGB | rgb(81, 200, 219) |
| HSL | hsl(188, 66%, 59%) |
| HSV | hsv(188, 63%, 86%) |
| CMYK | cmyk(63%, 8.7%, 0%, 14.1%) |
| CIE-LAB | lab(74.93, -27.43, -19.35) |
| CIE-LCH | lch(74.93, 33.56, 215.20°) |
| OKLab | oklab(77.32% -0.094 -0.0537) |
| OKLCH | oklch(77.32% 0.108 209.7) |
| XYZ | xyz(36.8285, 48.1684, 74.3606) |
| Luminance | 0.4817 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Aqua Blue
#02D8E9
ΔE00 5.04
Neon Blue
#04D9FF
ΔE00 6.29
Turquoise Blue
#06B1C4
ΔE00 6.90
Darkturquoise
#00CED1
ΔE00 7.33
Sky Blue
#87CEEB
ΔE00 7.84
Bright Sky Blue
#02CCFE
ΔE00 8.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#51C8DB #DB6451
analogous
#51DBA9 #51C8DB #5183DB
triadic
#51C8DB #DB51C8 #C8DB51
tetradic
#51C8DB #A951DB #DB6451 #83DB51
square
#51C8DB #A951DB #DB6451 #83DB51
split-complementary
#51C8DB #DB5183 #DBA951
monochromatic
#1E8393 #29B0C6 #51C8DB #84D8E5 #B6E8F0
Accessibility & contrast
On white
1.97
#51C8DB on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.63
#51C8DB on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #51C8DB
10.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##51C8DB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##51C8DB | 1.00 | 1.97 | 10.63 | 10.63 |
| #FFFFFF | 1.97 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.63 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.63 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B7C1DC
Deuteranopia (green-blind)
#A3B2DB
Tritanopia (blue-blind)
#00D1CE
Achromatopsia (no color)
#B8B8B8
Design tokens & code
CSS
--color: #51c8db; /* rgb */ color: rgb(81, 200, 219); /* oklch */ color: oklch(77.3% 0.108 209.7);
Tailwind
colors: {
custom: {
50: '#91d9e6',
500: '#51c8db',
950: '#000000',
},
}SCSS
$custom: #51c8db; $custom-light: #91d9e6; $custom-dark: #000000;
JSON
{
"hex": "#51c8db",
"rgb": {
"r": 81,
"g": 200,
"b": 219
},
"hsl": {
"h": 188.261,
"s": 65.714,
"l": 58.824
},
"oklch": {
"l": 0.77324,
"c": 0.10823,
"h": 209.7
},
"luminance": 0.48172
}Semantic roles & 50–950 ramp
primary
#51C8DB
secondary
#DFB0A9
accent
#563FE9
background
#F9FDFE
surface
#F2FAFC
border
#CCD3D5
text
#0E1415
muted
#7E8384