#3F3696
Closest named color: Blueberry (#464196). oklch(40.3% 0.151 281.4), rgb(63, 54, 150).
Aa
White text reads best on this color (9.63:1).
About this color
#3F3696 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.151 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.030 away. White text reads best on it, at 9.63:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.17:1 |
| White text | 9.63:1 |
Values
| HEX | #3F3696 |
| RGB | rgb(63, 54, 150) |
| HSL | hsl(246, 47%, 40%) |
| OKLCH | oklch(40.3% 0.151 281.4) |
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 #3F3696 | 9.63:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #3F3696 | 2.17:1 | Fails | Lc 12.1 | Not readable |
| #3F3696 text on white | 9.63:1 | AAA | Lc 91.9 | Preferred for body text |
| #3F3696 text on black | 2.17:1 | Fails | Lc -10.5 | Not readable |
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 800.
-
Step 50
50
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D3D6FA
oklch(88.5% 0.05 281.6)
-
Step 300
300
#B6BAF9
oklch(80.8% 0.089 281.4)
-
Step 400
400
#9294F6
oklch(70.6% 0.142 281.2)
-
Step 500
500
#7A76F2
oklch(63.1% 0.181 281.3)
-
Step 600
600
#655BE1
oklch(55.6% 0.197 281.2)
-
Step 700
700
#554AC3
oklch(49.2% 0.182 281.5)
-
Step 800
800 (this color)
#3F3696
oklch(40.3% 0.151 281.4)
-
Step 900
900
#39367D
oklch(37.7% 0.117 281.1)
-
Step 950
950
#212049
oklch(26.9% 0.074 281.3)
#3F3696 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) | #004899 | 0.065 |
| Deuteranopia (no green cones) | #004194 | 0.060 |
| Tritanopia (no blue cones) | #104E61 | 0.129 |
| Achromatopsia (no color) | #454545 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F3696
#3F3696
oklch(40.3% 0.151 281.4)
- #524900
#524900
oklch(40.2% 0.084 101.3)
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 #3F3696, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.031
- Sapphire #2138AB ΔE 0.052
- Cobalt #1E488F ΔE 0.058
- Indigo Blue #3A18B1 ΔE 0.065
- Imperial Purple #480CA8 ΔE 0.066
- Rebecca Purple #663399 ΔE 0.071
- Chrysanthemum #560BAD ΔE 0.075
Use #3F3696 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.