#17BAEF
Closest named color: Deep Sky Blue (#00BFFF). oklch(73.7% 0.14 228), rgb(23, 186, 239).
Aa
Black text reads best on this color (9.30:1).
About this color
#17BAEF is a medium-light, vivid teal or cyan. In OKLCH its lightness is 74%, its chroma 0.140 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.024 away. Black text reads best on it, at 9.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.30:1 |
| White text | 2.25:1 |
Values
| HEX | #17BAEF |
| RGB | rgb(23, 186, 239) |
| HSL | hsl(195, 87%, 51%) |
| OKLCH | oklch(73.7% 0.14 228) |
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 #17BAEF | 2.25:1 | Fails | Lc -48.7 | Large or bold text, headings |
| Black text on #17BAEF | 9.30:1 | AAA | Lc 60.1 | Content text, not long reading |
| #17BAEF text on white | 2.25:1 | Fails | Lc 43.9 | Non-text elements, placeholder text |
| #17BAEF text on black | 9.30:1 | AAA | Lc -58.3 | 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
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#D9EEF7
oklch(93.6% 0.025 225.3)
-
Step 200
200
#B9E0F3
oklch(88.5% 0.049 229)
-
Step 300
300
#81CCED
oklch(80.8% 0.088 227.8)
-
Step 400
400 (this color)
#17BAEF
oklch(73.7% 0.14 228)
-
Step 500
500
#0097C4
oklch(63.2% 0.123 228.1)
-
Step 600
600
#007FA5
oklch(55.7% 0.108 227.8)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#17BAEF 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) | #9EB7F2 | 0.101 |
| Deuteranopia (no green cones) | #84A4EE | 0.087 |
| Tritanopia (no blue cones) | #00C9CC | 0.076 |
| Achromatopsia (no color) | #ADADAD | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17BAEF
#17BAEF
oklch(73.7% 0.14 228)
- #F08C56
#F08C56
oklch(73.6% 0.14 47.9)
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 #17BAEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.024
- Bright Sky Blue #02CCFE ΔE 0.049
- Vivid Sky Blue #4CC9F0 ΔE 0.050
- Turquoise Blue #06B1C4 ΔE 0.064
- Lightblue #7BC8F6 ΔE 0.076
- Dark Turquoise #00CED1 ΔE 0.082
- Carolina Blue #8AB8FE ΔE 0.082
- Sky #82CAFC ΔE 0.086
Use #17BAEF 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.