#17BECF
Closest named color: Turquoise Blue (#06B1C4). oklch(73.3% 0.123 206.4), rgb(23, 190, 207).
Aa
Black text reads best on this color (9.30:1).
About this color
#17BECF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.123 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.038 away. Black text reads best on it, at 9.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.30:1 |
| White text | 2.25:1 |
Values
| HEX | #17BECF |
| RGB | rgb(23, 190, 207) |
| HSL | hsl(186, 80%, 45%) |
| OKLCH | oklch(73.3% 0.123 206.4) |
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 #17BECF | 2.25:1 | Fails | Lc -48.7 | Large or bold text, headings |
| Black text on #17BECF | 9.30:1 | AAA | Lc 60.0 | Content text, not long reading |
| #17BECF text on white | 2.25:1 | Fails | Lc 43.9 | Non-text elements, placeholder text |
| #17BECF text on black | 9.30:1 | AAA | Lc -58.2 | 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
#EEF8F9
oklch(97.2% 0.011 204.1)
-
Step 100
100
#DAEEF1
oklch(93.5% 0.022 207.6)
-
Step 200
200
#B9E2E7
oklch(88.5% 0.043 205.5)
-
Step 300
300
#83CFD9
oklch(80.9% 0.076 206.4)
-
Step 400
400 (this color)
#17BECF
oklch(73.3% 0.123 206.4)
-
Step 500
500
#009BAA
oklch(63% 0.108 206.9)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#17BECF 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) | #ADB6D0 | 0.120 |
| Deuteranopia (no green cones) | #96A5CF | 0.110 |
| Tritanopia (no blue cones) | #00C7C3 | 0.036 |
| Achromatopsia (no color) | #ACACAC | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17BECF
#17BECF
oklch(73.3% 0.123 206.4)
- #EC897F
#EC897F
oklch(73.4% 0.123 26.6)
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 #17BECF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.038
- Dark Turquoise #00CED1 ΔE 0.045
- Topaz #13BBAF ΔE 0.046
- Light Sea Green #20B2AA ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.060
- Medium Turquoise #48D1CC ΔE 0.062
- Bright Sky Blue #02CCFE ΔE 0.070
- Deep Sky Blue #00BFFF ΔE 0.071
Use #17BECF 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.