#17CBE7
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(77.4% 0.132 212.5), rgb(23, 203, 231).
Aa
Black text reads best on this color (10.73:1).
About this color
#17CBE7 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.132 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.026 away. Black text reads best on it, at 10.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.73:1 |
| White text | 1.95:1 |
Values
| HEX | #17CBE7 |
| RGB | rgb(23, 203, 231) |
| HSL | hsl(188, 82%, 50%) |
| OKLCH | oklch(77.4% 0.132 212.5) |
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 #17CBE7 | 1.95:1 | Fails | Lc -41.4 | Non-text elements, placeholder text |
| Black text on #17CBE7 | 10.73:1 | AAA | Lc 66.8 | Content text, not long reading |
| #17CBE7 text on white | 1.95:1 | Fails | Lc 37.1 | Non-text elements, placeholder text |
| #17CBE7 text on black | 10.73:1 | AAA | Lc -65.4 | 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
#E9F9FC
oklch(97.1% 0.017 210.2)
-
Step 100
100
#CEF1F9
oklch(93.6% 0.038 213.1)
-
Step 200
200
#9FE7F6
oklch(88.6% 0.074 212.1)
-
Step 300
300 (this color)
#17CBE7
oklch(77.4% 0.132 212.5)
-
Step 400
400
#00B4CE
oklch(70.7% 0.124 212.8)
-
Step 500
500
#009AB0
oklch(63% 0.11 212.4)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#17CBE7 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) | #B6C4E9 | 0.122 |
| Deuteranopia (no green cones) | #9DB1E7 | 0.111 |
| Tritanopia (no blue cones) | #00D6D4 | 0.048 |
| Achromatopsia (no color) | #B9B9B9 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17CBE7
#17CBE7
oklch(77.4% 0.132 212.5)
- #FE947F
#FE947F
oklch(77.4% 0.132 32.1)
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 #17CBE7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.026
- Bright Sky Blue #02CCFE ΔE 0.033
- Aqua Blue #02D8E9 ΔE 0.036
- Dark Turquoise #00CED1 ΔE 0.036
- Medium Turquoise #48D1CC ΔE 0.049
- Deep Sky Blue #00BFFF ΔE 0.055
- Lightblue #7BC8F6 ΔE 0.063
- Sky Blue #87CEEB ΔE 0.069
Use #17CBE7 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.