#17C0AB
Closest named color: Topaz (#13BBAF). oklch(72.6% 0.128 181.1), rgb(23, 192, 171).
Aa
Black text reads best on this color (9.16:1).
About this color
#17C0AB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.128 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.018 away. Black text reads best on it, at 9.16:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.16:1 |
| White text | 2.29:1 |
Values
| HEX | #17C0AB |
| RGB | rgb(23, 192, 171) |
| HSL | hsl(173, 79%, 42%) |
| OKLCH | oklch(72.6% 0.128 181.1) |
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 #17C0AB | 2.29:1 | Fails | Lc -49.5 | Large or bold text, headings |
| Black text on #17C0AB | 9.16:1 | AAA | Lc 59.3 | Large or bold text, headings |
| #17C0AB text on white | 2.29:1 | Fails | Lc 44.6 | Non-text elements, placeholder text |
| #17C0AB text on black | 9.16:1 | AAA | Lc -57.5 | Large or bold text, headings |
Tints and shades
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
#DAEFEB
oklch(93.6% 0.023 183.2)
-
Step 200
200
#BAE3DB
oklch(88.4% 0.044 182.1)
-
Step 300
300
#84D2C3
oklch(80.9% 0.08 180.6)
-
Step 400
400 (this color)
#17C0AB
oklch(72.6% 0.128 181.1)
-
Step 500
500
#009F8D
oklch(63% 0.114 181)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#17C0AB 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) | #B7B4AA | 0.135 |
| Deuteranopia (no green cones) | #A3A5AD | 0.129 |
| Tritanopia (no blue cones) | #00C4BA | 0.021 |
| Achromatopsia (no color) | #ABABAB | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17C0AB
#17C0AB
oklch(72.6% 0.128 181.1)
- #E782A1
#E782A1
oklch(72.5% 0.128 1.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #17C0AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.018
- Greeny Blue #42B395 ΔE 0.040
- Light Sea Green #20B2AA ΔE 0.041
- Green Blue #01C08D ΔE 0.044
- Greenblue #23C48B ΔE 0.050
- Dark Turquoise #00CED1 ΔE 0.058
- Medium Aquamarine #66CDAA ΔE 0.060
- Medium Turquoise #48D1CC ΔE 0.066
Use #17C0AB 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.