#3C8CF0
Closest named color: Dark Sky Blue (#448EE4). oklch(64.1% 0.169 255.7), rgb(60, 140, 240).
Aa
Black text reads best on this color (6.20:1).
About this color
#3C8CF0 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.169 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.020 away. Black text reads best on it, at 6.20:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.20:1 |
| White text | 3.38:1 |
Values
| HEX | #3C8CF0 |
| RGB | rgb(60, 140, 240) |
| HSL | hsl(213, 86%, 59%) |
| OKLCH | oklch(64.1% 0.169 255.7) |
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 #3C8CF0 | 3.38:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #3C8CF0 | 6.20:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #3C8CF0 text on white | 3.38:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #3C8CF0 text on black | 6.20:1 | AA | Lc -40.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF8
oklch(88.5% 0.046 256.5)
-
Step 300
300
#9DC3F6
oklch(80.8% 0.083 255.9)
-
Step 400
400
#66A3F1
oklch(70.7% 0.131 255.2)
-
Step 500
500 (this color)
#3C8CF0
oklch(64.1% 0.169 255.7)
-
Step 600
600
#0970DB
oklch(55.6% 0.184 255.7)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#044D9A
oklch(42.8% 0.141 255.6)
-
Step 900
900
#11417A
oklch(37.8% 0.109 255.5)
-
Step 950
950
#0C2648
oklch(26.9% 0.071 256.4)
#3C8CF0 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) | #5B94F4 | 0.037 |
| Deuteranopia (no green cones) | #3B84EE | 0.021 |
| Tritanopia (no blue cones) | #00A4B2 | 0.131 |
| Achromatopsia (no color) | #8B8B8B | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C8CF0
#3C8CF0
oklch(64.1% 0.169 255.7)
- #BB7F00
#BB7F00
oklch(64.2% 0.135 75.7)
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 #3C8CF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.020
- Dodger Blue #1E90FF ΔE 0.025
- Chefchaouen Blue #4895EF ΔE 0.028
- Soft Blue #6488EA ΔE 0.036
- Cornflower Blue #6495ED ΔE 0.046
- Clear Blue #247AFD ΔE 0.056
- Water Blue #0E87CC ΔE 0.061
- Cornflower #6A79F7 ΔE 0.062
Use #3C8CF0 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.