#3365F2
Closest named color: Neon Blue (#4361EE). oklch(56% 0.219 265), rgb(51, 101, 242).
Aa
White text reads best on this color (4.90:1).
About this color
#3365F2 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.219 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.016 away. White text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.219) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #3365F2 |
| RGB | rgb(51, 101, 242) |
| HSL | hsl(224, 88%, 57%) |
| OKLCH | oklch(56% 0.219 265) |
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 #3365F2 | 4.90:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #3365F2 | 4.28:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #3365F2 text on white | 4.90:1 | AA | Lc 73.3 | Content text, not long reading |
| #3365F2 text on black | 4.28:1 | AA large text | Lc -28.4 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C8D9FE
oklch(88.5% 0.054 265.8)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#729CFF
oklch(70.6% 0.153 265.4)
-
Step 500
500
#4D7FFF
oklch(63% 0.198 265.1)
-
Step 600
600 (this color)
#3365F2
oklch(56% 0.219 265)
-
Step 700
700
#2651D2
oklch(49.1% 0.204 265.2)
-
Step 800
800
#2044A9
oklch(42.8% 0.168 265)
-
Step 900
900
#1E3B86
oklch(37.8% 0.131 264.8)
-
Step 950
950
#12234E
oklch(26.9% 0.082 265.1)
#3365F2 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) | #007AF7 | 0.050 |
| Deuteranopia (no green cones) | #0068EF | 0.022 |
| Tritanopia (no blue cones) | #0089A2 | 0.170 |
| Achromatopsia (no color) | #717171 | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3365F2
#3365F2
oklch(56% 0.219 265)
- #936E00
#936E00
oklch(56% 0.115 85.2)
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 #3365F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.016
- Bright Blue #0165FC ΔE 0.026
- Cerulean Blue #056EEE ΔE 0.027
- Azul #1D5DEC ΔE 0.028
- Royal Blue #4169E1 ΔE 0.031
- Warm Blue #4B57DB ΔE 0.049
- Clear Blue #247AFD ΔE 0.051
- Electric Blue #0652FF ΔE 0.054
Use #3365F2 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.