Happy Hippo color: hex code #818581
Happy Hippo has the hex code #818581. It is a gray.
In the RGB color model it is made of 50.6% red, 52.2% green and 50.6% blue (129, 133, 129).
Its hue angle is 120°, with 2% saturation and 51% lightness. For print, the CMYK equivalent is 3% cyan, 0% magenta, 3% yellow and 48% black.
Black text is the more readable choice on this background (contrast 5.61:1).
Happy Hippo (#818581) color codes
| HEX | #818581 | |
|---|---|---|
| RGB | rgb(129, 133, 129) | |
| RGB percent | rgb(50.6%, 52.2%, 50.6%) | |
| HSL | hsl(120, 2%, 51%) | |
| HSV / HSB | hsv(120, 3%, 52%) | |
| CMYK | cmyk(3%, 0%, 3%, 48%) | |
| CIE LAB | lab(55.1, -2.28, 1.64) | |
| CIE LCH | lch(55.1, 2.8, 144.28) | |
| CIE XYZ | xyz(21.403, 23.027, 24.082) | |
| Decimal | 8488321 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with Happy Hippo, based on their position on the color wheel.
Complementary
The color opposite on the color wheel (180°). Strongest contrast.
Analogous
Neighbors 30° either side. Calm, natural combinations.
Split complementary
The two colors next to the complement (150° and 210°).
Triadic
Three colors evenly spaced, 120° apart.
Tetradic (square)
Four colors 90° apart.
Shades, tints and tones
Shades (darker, mixed with black)
Tints (lighter, mixed with white)
Tones (mixed with gray)
Contrast and accessibility
| Text on #818581 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 5.61:1 | Pass | Fail | Pass |
| Sample text | 3.75:1 | Fail | Fail | Pass |
| #818581 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 3.75:1 | Fail | Fail | Pass |
| Sample text | 5.61:1 | Pass | Fail | Pass |
WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.
Color blindness simulation
How #818581 looks to people with the most common types of color vision deficiency.
#858481Protanopia
no red cones#848481Deuteranopia
no green cones#818584Tritanopia
no blue cones#848484Achromatopsia
no color vision
CSS examples
.background { background-color: #818581; }
.text { color: #818581; }
.border { border: 2px solid #818581; }
.transparent { background-color: rgb(129 133 129 / 50%); }
.gradient { background: linear-gradient(to right, #818581, #818583); }Similar colors
#848482Battleship Gray#848482Old Silver#7c8181Whale#838585Gryphon#878785Jumbo#7f8181Mt. Rushmore#878786Lunar Base#7d7d77Moon Base
See #818581 on its hex code page
Questions
- What color is #818581?
- #818581 is a gray known as Happy Hippo. It belongs to the gray family of colors.
- What is the RGB value of Happy Hippo?
- The RGB value is 129, 133, 129: 129 red, 133 green and 129 blue on a 0 to 255 scale.
- What is the complementary color of Happy Hippo?
- The complementary color is #858185, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #818581?
- Black text. Black text has a contrast ratio of 5.61:1 and white text 3.75:1. WCAG asks for at least 4.5:1 for normal text.