#3066EF
Closest named color: Neon Blue (#4361EE). oklch(55.8% 0.214 264.2), rgb(48, 102, 239).
Aa
White text reads best on this color (4.91:1).
About this color
#3066EF is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.214 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.018 away. White text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.214) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #3066EF |
| RGB | rgb(48, 102, 239) |
| HSL | hsl(223, 86%, 56%) |
| OKLCH | oklch(55.8% 0.214 264.2) |
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 #3066EF | 4.91:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #3066EF | 4.27:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #3066EF text on white | 4.91:1 | AA | Lc 73.4 | Content text, not long reading |
| #3066EF text on black | 4.27:1 | AA large text | Lc -28.3 | Dividers and decoration only |
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 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C7DAFE
oklch(88.6% 0.054 263.2)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600 (this color)
#3066EF
oklch(55.8% 0.214 264.2)
-
Step 700
700
#2353CF
oklch(49.1% 0.199 264.1)
-
Step 800
800
#1E45A8
oklch(42.8% 0.165 264.2)
-
Step 900
900
#1D3B85
oklch(37.7% 0.13 264.4)
-
Step 950
950
#11234E
oklch(26.9% 0.083 264.4)
#3066EF 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) | #007AF4 | 0.048 |
| Deuteranopia (no green cones) | #0068EC | 0.020 |
| Tritanopia (no blue cones) | #0089A1 | 0.166 |
| Achromatopsia (no color) | #717171 | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3066EF
#3066EF
oklch(55.8% 0.214 264.2)
- #936D00
#936D00
oklch(55.8% 0.114 84.3)
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 #3066EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.018
- Cerulean Blue #056EEE ΔE 0.023
- Azul #1D5DEC ΔE 0.027
- Royal Blue #4169E1 ΔE 0.027
- Bright Blue #0165FC ΔE 0.027
- Warm Blue #4B57DB ΔE 0.048
- Clear Blue #247AFD ΔE 0.051
- Electric Blue #0652FF ΔE 0.057
Use #3066EF 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.