#3F1D6B
Closest named color: Royal Purple (#4B006E). oklch(32.6% 0.128 299), rgb(63, 29, 107).
Aa
White text reads best on this color (13.12:1).
About this color
#3F1D6B is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.128 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.043 away. White text reads best on it, at 13.12:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.59:1 |
| White text | 13.12:1 |
Values
| HEX | #3F1D6B |
| RGB | rgb(63, 29, 107) |
| HSL | hsl(266, 57%, 27%) |
| OKLCH | oklch(32.6% 0.128 299) |
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 #3F1D6B | 13.12:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #3F1D6B | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #3F1D6B text on white | 13.12:1 | AAA | Lc 98.9 | Preferred for body text |
| #3F1D6B text on black | 1.59:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DDD2F8
oklch(88.5% 0.053 298.5)
-
Step 300
300
#C9B3F7
oklch(80.9% 0.097 299.1)
-
Step 400
400
#AE88F2
oklch(70.6% 0.154 298.9)
-
Step 500
500
#9C66ED
oklch(63.1% 0.196 299.1)
-
Step 600
600
#8848DC
oklch(55.6% 0.214 299.1)
-
Step 700
700
#7338BF
oklch(49.1% 0.199 298.8)
-
Step 800
800
#5E309A
oklch(42.8% 0.164 299.2)
-
Step 900
900 (this color)
#3F1D6B
oklch(32.6% 0.128 299)
-
Step 950
950
#2D1B48
oklch(27.1% 0.081 299.4)
#3F1D6B 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) | #00306D | 0.088 |
| Deuteranopia (no green cones) | #003069 | 0.089 |
| Tritanopia (no blue cones) | #353041 | 0.098 |
| Achromatopsia (no color) | #303030 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F1D6B
#3F1D6B
oklch(32.6% 0.128 299)
- #303900
#303900
oklch(32.5% 0.076 119.1)
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 #3F1D6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.043
- Indigo #4B0082 ΔE 0.053
- Plum Purple #4E0550 ΔE 0.067
- Midnight Blue #191970 ΔE 0.074
- Deep Violet #490648 ΔE 0.075
- Grape Purple #5D1451 ΔE 0.082
- Eggplant Purple #430541 ΔE 0.085
- Marine #042E60 ΔE 0.089
Use #3F1D6B 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.