#17AEEB
Closest named color: Deep Sky Blue (#00BFFF). oklch(70.7% 0.143 233.4), rgb(23, 174, 235).
Aa
Black text reads best on this color (8.29:1).
About this color
#17AEEB is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.143 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.049 away. Black text reads best on it, at 8.29:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.29:1 |
| White text | 2.53:1 |
Values
| HEX | #17AEEB |
| RGB | rgb(23, 174, 235) |
| HSL | hsl(197, 84%, 51%) |
| OKLCH | oklch(70.7% 0.143 233.4) |
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 #17AEEB | 2.53:1 | Fails | Lc -54.1 | Large or bold text, headings |
| Black text on #17AEEB | 8.29:1 | AAA | Lc 54.9 | Large or bold text, headings |
| #17AEEB text on white | 2.53:1 | Fails | Lc 49.1 | Large or bold text, headings |
| #17AEEB text on black | 8.29:1 | AAA | Lc -52.9 | 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
#DAEDF9
oklch(93.6% 0.026 235.4)
-
Step 200
200
#BADFF5
oklch(88.4% 0.049 234.2)
-
Step 300
300
#84CBF1
oklch(80.9% 0.089 232.8)
-
Step 400
400 (this color)
#17AEEB
oklch(70.7% 0.143 233.4)
-
Step 500
500
#0095CC
oklch(63.1% 0.132 233.7)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002A3D
oklch(26.9% 0.056 233.8)
#17AEEB 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) | #8FADEE | 0.089 |
| Deuteranopia (no green cones) | #759BEA | 0.074 |
| Tritanopia (no blue cones) | #00BEC3 | 0.085 |
| Achromatopsia (no color) | #A3A3A3 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17AEEB
#17AEEB
oklch(70.7% 0.143 233.4)
- #E48541
#E48541
oklch(70.7% 0.142 53.5)
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 #17AEEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.049
- Turquoise Blue #06B1C4 ΔE 0.062
- Chefchaouen Blue #4895EF ΔE 0.070
- Cornflower Blue #6495ED ΔE 0.076
- Bright Sky Blue #02CCFE ΔE 0.082
- Vivid Sky Blue #4CC9F0 ΔE 0.082
- Dark Sky Blue #448EE4 ΔE 0.085
- Greyblue #77A1B5 ΔE 0.092
Use #17AEEB 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.