#3685F2
Closest named color: Dodger Blue (#1E90FF). oklch(62.5% 0.181 257.5), rgb(54, 133, 242).
Aa
Black text reads best on this color (5.79:1).
About this color
#3685F2 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.181 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.032 away. Black text reads best on it, at 5.79:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 5.79:1 |
| White text | 3.62:1 |
Values
| HEX | #3685F2 |
| RGB | rgb(54, 133, 242) |
| HSL | hsl(215, 88%, 58%) |
| OKLCH | oklch(62.5% 0.181 257.5) |
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 #3685F2 | 3.62:1 | AA large text | Lc -68.9 | Content text, not long reading |
| Black text on #3685F2 | 5.79:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #3685F2 text on white | 3.62:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #3685F2 text on black | 5.79:1 | AA | Lc -38.3 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9DC3FA
oklch(81% 0.088 257.6)
-
Step 400
400
#65A1F7
oklch(70.6% 0.141 257.5)
-
Step 500
500 (this color)
#3685F2
oklch(62.5% 0.181 257.5)
-
Step 600
600
#096DE3
oklch(55.5% 0.197 257.6)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800
#044B9F
oklch(42.7% 0.15 257.3)
-
Step 900
900
#103F7E
oklch(37.6% 0.118 257.5)
-
Step 950
950
#0C264A
oklch(27.1% 0.074 257.4)
#3685F2 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) | #4B8FF6 | 0.033 |
| Deuteranopia (no green cones) | #1E7EF0 | 0.025 |
| Tritanopia (no blue cones) | #009FB0 | 0.139 |
| Achromatopsia (no color) | #868686 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3685F2
#3685F2
oklch(62.5% 0.181 257.5)
- #B37C00
#B37C00
oklch(62.6% 0.131 77.6)
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 #3685F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.037
- Clear Blue #247AFD ΔE 0.037
- Soft Blue #6488EA ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.048
- Cornflower #6A79F7 ΔE 0.055
- Water Blue #0E87CC ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.064
Use #3685F2 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.