Topaz #13BBAF
Topaz is a medium-light, moderately saturated teal or cyan with hex code #13BBAF and RGB rgb(19, 187, 175).
Aa
Black text reads best on this color (8.75:1).
About this color
#13BBAF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.123 and its hue 187°. Its hue sits on the cool side of the wheel. It is the named color Topaz. Black text reads best on it, at 8.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Topaz |
| Black text | 8.75:1 |
| White text | 2.39:1 |
Colors that go with Topaz
Matches found by rotating Topaz around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Topaz
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Topaz, closest first.
Similar named colors
The eight named colors closest to Topaz, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.025
- Greeny Blue #42B395 ΔE 0.037
- Turquoise Blue #06B1C4 ΔE 0.049
- Green Blue #01C08D ΔE 0.056
- Dark Turquoise #00CED1 ΔE 0.063
- Greenblue #23C48B ΔE 0.065
- Dark Seafoam #1FB57A ΔE 0.072
- Bluey Green #2BB179 ΔE 0.073
More about Topaz
How to make Topaz
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 4 parts white
- 3 parts blue
- 1 part yellow
Recipe result: #6FB6B4, a difference of ΔE 0.055 from Topaz. That is close; add a little more of one paint to match.
Codes for Topaz in every format
| HEX | #13BBAF |
| RGB | rgb(19, 187, 175) |
| HSL | hsl(176, 82%, 40%) |
| OKLCH | oklch(71.4% 0.123 186.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #13BBAF | 2.39:1 | Fails | Lc -51.6 | Large or bold text, headings |
| Black text on #13BBAF | 8.75:1 | AAA | Lc 57.3 | Large or bold text, headings |
| #13BBAF text on white | 2.39:1 | Fails | Lc 46.7 | Large or bold text, headings |
| #13BBAF text on black | 8.75:1 | AAA | Lc -55.4 | Large or bold text, headings |
Shades and tints of Topaz
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#EEF8F6
oklch(97.1% 0.011 182.9)
-
Step 100
100
#DAEFEC
oklch(93.6% 0.022 186.5)
-
Step 200
200
#BBE3DD
oklch(88.6% 0.042 185.3)
-
Step 300
300
#85D1C8
oklch(80.9% 0.077 186.3)
-
Step 400
400 (this color)
#13BBAF
oklch(71.4% 0.123 186.6)
-
Step 500
500
#009F94
oklch(63.2% 0.111 186.2)
-
Step 600
600
#00857C
oklch(55.5% 0.097 186.5)
-
Step 700
700
#007068
oklch(49.1% 0.086 186.2)
-
Step 800
800
#005C55
oklch(42.7% 0.075 185.9)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
Topaz with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #B0B0AF | 0.130 |
| Deuteranopia (no green cones) | #9CA1B0 | 0.123 |
| Tritanopia (no blue cones) | #00C0B7 | 0.015 |
| Achromatopsia (no color) | #A7A7A7 | 0.123 |
Use Topaz in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.