#3F94FD
Closest named color: Dodger Blue (#1E90FF). oklch(66.7% 0.176 255.5), rgb(63, 148, 253).
Aa
Black text reads best on this color (6.86:1).
About this color
#3F94FD is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.176 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.022 away. Black text reads best on it, at 6.86:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.86:1 |
| White text | 3.05:1 |
Values
| HEX | #3F94FD |
| RGB | rgb(63, 148, 253) |
| HSL | hsl(213, 98%, 62%) |
| OKLCH | oklch(66.7% 0.176 255.5) |
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 #3F94FD | 3.05:1 | AA large text | Lc -62.4 | Content text, not long reading |
| Black text on #3F94FD | 6.86:1 | AA | Lc 47.0 | Large or bold text, headings |
| #3F94FD text on white | 3.05:1 | AA large text | Lc 57.0 | Large or bold text, headings |
| #3F94FD text on black | 6.86:1 | AA | Lc -44.7 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9CC3F8
oklch(80.8% 0.086 256.2)
-
Step 400
400
#63A3F5
oklch(70.8% 0.138 255.3)
-
Step 500
500 (this color)
#3F94FD
oklch(66.7% 0.176 255.5)
-
Step 600
600
#0070DD
oklch(55.6% 0.187 255.6)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#004D9B
oklch(42.8% 0.143 255.4)
-
Step 900
900
#0C407D
oklch(37.6% 0.116 255.9)
-
Step 950
950
#0A2649
oklch(26.9% 0.073 255.8)
#3F94FD 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) | #609DFF | 0.039 |
| Deuteranopia (no green cones) | #3F8BFB | 0.023 |
| Tritanopia (no blue cones) | #00ADBC | 0.135 |
| Achromatopsia (no color) | #939393 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F94FD
#3F94FD
oklch(66.7% 0.176 255.5)
- #C58600
#C58600
oklch(66.7% 0.14 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 #3F94FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.022
- Chefchaouen Blue #4895EF ΔE 0.022
- Dark Sky Blue #448EE4 ΔE 0.038
- Cornflower Blue #6495ED ΔE 0.039
- Soft Blue #6488EA ΔE 0.045
- Clear Blue #247AFD ΔE 0.072
- Cornflower #6A79F7 ΔE 0.072
- Lavender Blue #8B88F8 ΔE 0.081
Use #3F94FD 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.