Cyan / Teal color · XKCD survey name
Topaz Color Code: #13BBAF
Topaz (#13BBAF) is a medium-dark, vivid cyan shade: RGB 19, 187, 175, HSL 176°, 82%, 40%. Black text reads best on it (8.75:1 contrast).
Topaz color values
#13BBAF
rgb(19, 187, 175)
hsl(176, 82%, 40%)
176, 90%, 73%
hwb(176 7% 27%)
90%, 0%, 6%, 27%
1293231
CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.
What is Topaz?
“Topaz” is a crowd-sourced name from the XKCD Color Survey, in which participants typed names for colors they were shown. It is a popular everyday label rather than an official standard.
Its hue angle of 176° places it in the cyan part of the color wheel, with 82% saturation (vivid) and 40% lightness (medium-dark). It is a cool color.
Compared with the other cyan / teal colors in the Aqeeb Studio library, it is lighter than 35% of them and more saturated than 23% of them.
Its relative luminance is 0.388, which makes it a light color. That is above the 0.179 crossover point at which black and white text have equal contrast, so black text has the advantage.
Topaz counts as a light color: its HSL lightness is 40% and its relative luminance is 0.388. Black text reads best on it (8.75:1 contrast).
Text contrast on Topaz
| Text | Preview | Ratio | AA normal | AA large | AAA normal | AAA large |
|---|---|---|---|---|---|---|
| White text | Sample text | 2.39:1 Poor | Fail | Fail | Fail | Fail |
| Black text | Sample text | 8.75:1 Excellent | Pass | Pass | Pass | Pass |
Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.
Colors that go with Topaz
Complementary color
Complementary colors sit directly opposite each other on the color wheel (180° apart). They give the strongest hue contrast, which suits calls to action and accents.
Analogous colors
Analogous colors are neighbors on the wheel, 30° either side of the base hue. They blend smoothly and are easy to combine in backgrounds, gradients and illustrations.
Triadic colors
A triadic scheme uses three hues spaced 120° apart. It is lively yet balanced, and works best when one color leads and the other two act as accents.
Split-complementary colors
Split-complementary keeps the base color and uses the two colors on either side of its complement (150° and 210°). The contrast is strong but gentler than a direct complement.
Tetradic colors
A tetradic (rectangle) scheme combines two complementary pairs at 0°, 60°, 180° and 240°. It offers variety but needs one dominant color to stay balanced.
Monochromatic variants
Monochromatic variants keep the same hue and saturation and only change lightness, which makes them dependable for UI scales and subtle layered designs.
A “≈” before a name means the exact harmony color has no named match, so the link goes to the closest named color.
Tints and shades of Topaz
Lighter tints (mixed with white)
Darker shades (mixed with black)
Select any swatch to copy its HEX code. Build longer scales with the tints and shades tool.
Similar colors
Where to use Topaz
- Card, highlight and section backgrounds with dark text (8.75:1 contrast with black)
- Accents that need to stand out: call-to-action buttons, charts and illustrations
- Technology and water-themed graphics
- Fresh accents against warm colors
- Data-visualization series
- Info states and links
Use Topaz in CSS
:root {
--color-topaz: #13BBAF;
}
.element {
color: var(--color-topaz);
background-color: #13BBAF;
border: 2px solid #13BBAF;
}
Questions about Topaz
What is the HEX code for Topaz?
Topaz is #13BBAF.
What is the RGB value of Topaz?
The RGB value of Topaz is 19, 187, 175: 19 red, 187 green and 175 blue on a 0–255 scale, written rgb(19, 187, 175) in CSS.
What is the HSL value of Topaz?
The HSL value of Topaz is 176°, 82%, 40% (hue, saturation, lightness), written hsl(176, 82%, 40%) in CSS.
What is the CMYK value of Topaz?
A standard conversion gives about C 90%, M 0%, Y 6%, K 27%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.
Is Topaz a light or dark color?
Topaz counts as a light color: its HSL lightness is 40% and its relative luminance is 0.388. Black text reads best on it (8.75:1 contrast).
How does Topaz look with white text?
White text on Topaz has a contrast ratio of 2.39:1, rated Poor. It falls below the WCAG minimum for text.
How does Topaz look with black text?
Black text on Topaz has a contrast ratio of 8.75:1, rated Excellent. It meets WCAG AA for normal text.
What colors go well with Topaz?
Scarlet is its complementary color, and Shamrock sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.
Where can Topaz be used?
It suits card, highlight and section backgrounds with dark text (8.75:1 contrast with black); accents that need to stand out: call-to-action buttons, charts and illustrations; technology and water-themed graphics.
How do I use Topaz in CSS?
Use color: #13BBAF; for text, background-color: #13BBAF; for fills, or define a custom property such as --color-topaz: #13BBAF; and reuse it with var(--color-topaz).
About this color page
Crowd-sourced name from the XKCD Color Survey (CC0). Values are calculated from the HEX code; color names are labels, not trademarks or standards unless stated. Screens render colors differently, so always check important colors on your own device. See the disclaimer.