#17A1EA
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.7% 0.151 240.3), rgb(23, 161, 234).
Aa
Black text reads best on this color (7.32:1).
About this color
#17A1EA is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.151 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.039 away. Black text reads best on it, at 7.32:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #17A1EA |
| RGB | rgb(23, 161, 234) |
| HSL | hsl(201, 83%, 50%) |
| OKLCH | oklch(67.7% 0.151 240.3) |
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 #17A1EA | 2.86:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #17A1EA | 7.32:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #17A1EA text on white | 2.86:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #17A1EA text on black | 7.32:1 | AAA | Lc -47.5 | 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
#EEF7FD
oklch(97.1% 0.013 236.6)
-
Step 100
100
#DAEDFB
oklch(93.6% 0.028 239.7)
-
Step 200
200
#BBDEF9
oklch(88.4% 0.053 241.4)
-
Step 300
300
#87C9F8
oklch(80.9% 0.095 240.4)
-
Step 400
400 (this color)
#17A1EA
oklch(67.7% 0.151 240.3)
-
Step 500
500
#0092D8
oklch(63% 0.146 240.6)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#17A1EA 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) | #7EA2ED | 0.076 |
| Deuteranopia (no green cones) | #6291E9 | 0.057 |
| Tritanopia (no blue cones) | #00B3BB | 0.099 |
| Achromatopsia (no color) | #989898 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17A1EA
#17A1EA
oklch(67.7% 0.151 240.3)
- #D97D1A
#D97D1A
oklch(67.7% 0.151 60)
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 #17A1EA, closest first.
No curated palette has a color within ΔE 0.04 of #17A1EA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.054
- Dodger Blue #1E90FF ΔE 0.060
- Soft Blue #6488EA ΔE 0.076
- Water Blue #0E87CC ΔE 0.079
- Deep Sky Blue #00BFFF ΔE 0.082
- Turquoise Blue #06B1C4 ΔE 0.082
Use #17A1EA 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.