#17C8D4
Closest named color: Dark Turquoise (#00CED1). oklch(76% 0.127 202.7), rgb(23, 200, 212).
Aa
Black text reads best on this color (10.24:1).
About this color
#17C8D4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.127 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Turquoise (#00CED1), ΔE 0.019 away. Black text reads best on it, at 10.24:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Dark Turquoise (#00CED1) |
| Black text | 10.24:1 |
| White text | 2.04:1 |
Values
| HEX | #17C8D4 |
| RGB | rgb(23, 200, 212) |
| HSL | hsl(184, 80%, 46%) |
| OKLCH | oklch(76% 0.127 202.7) |
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 #17C8D4 | 2.04:1 | Fails | Lc -43.8 | Non-text elements, placeholder text |
| Black text on #17C8D4 | 10.24:1 | AAA | Lc 64.6 | Content text, not long reading |
| #17C8D4 text on white | 2.04:1 | Fails | Lc 39.3 | Non-text elements, placeholder text |
| #17C8D4 text on black | 10.24:1 | AAA | Lc -63.0 | Content text, not long reading |
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 300.
-
Step 50
50
#E9F9FA
oklch(97.1% 0.017 201.4)
-
Step 100
100
#CFF2F5
oklch(93.7% 0.037 202.9)
-
Step 200
200
#A1E7ED
oklch(88.4% 0.07 202.7)
-
Step 300
300 (this color)
#17C8D4
oklch(76% 0.127 202.7)
-
Step 400
400
#00B6C1
oklch(70.7% 0.12 202.5)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#17C8D4 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) | #B7BFD5 | 0.126 |
| Deuteranopia (no green cones) | #A0AED5 | 0.117 |
| Tritanopia (no blue cones) | #00D0CB | 0.030 |
| Achromatopsia (no color) | #B5B5B5 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17C8D4
#17C8D4
oklch(76% 0.127 202.7)
- #F78F8B
#F78F8B
oklch(75.9% 0.127 22.8)
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 #17C8D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Turquoise #00CED1 ΔE 0.019
- Medium Turquoise #48D1CC ΔE 0.037
- Aqua Blue #02D8E9 ΔE 0.047
- Vivid Sky Blue #4CC9F0 ΔE 0.049
- Topaz #13BBAF ΔE 0.057
- Bright Sky Blue #02CCFE ΔE 0.060
- Turquoise Blue #06B1C4 ΔE 0.065
- Medium Aquamarine #66CDAA ΔE 0.073
Use #17C8D4 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.