#3F1A5B
Closest named color: Plum Purple (#4E0550). oklch(30.8% 0.113 307.1), rgb(63, 26, 91).
Aa
White text reads best on this color (13.90:1).
About this color
#3F1A5B is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.113 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.047 away. White text reads best on it, at 13.90:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.51:1 |
| White text | 13.90:1 |
Values
| HEX | #3F1A5B |
| RGB | rgb(63, 26, 91) |
| HSL | hsl(274, 56%, 23%) |
| OKLCH | oklch(30.8% 0.113 307.1) |
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 #3F1A5B | 13.90:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #3F1A5B | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #3F1A5B text on white | 13.90:1 | AAA | Lc 100.1 | Preferred for body text |
| #3F1A5B text on black | 1.51:1 | 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 950.
-
Step 50
50
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#F1E4FF
oklch(93.7% 0.039 307.2)
-
Step 200
200
#E6CDFF
oklch(88.5% 0.073 307.6)
-
Step 300
300
#D6ABFF
oklch(80.9% 0.124 307.3)
-
Step 400
400
#C178FF
oklch(70.6% 0.199 307)
-
Step 500
500
#B348FF
oklch(63.1% 0.258 307.1)
-
Step 600
600
#A000F0
oklch(55.6% 0.285 307.1)
-
Step 700
700
#8700CC
oklch(49.1% 0.252 307)
-
Step 800
800
#6F00A9
oklch(42.7% 0.219 307)
-
Step 900
900
#5B1189
oklch(37.8% 0.179 307)
-
Step 950
950 (this color)
#3F1A5B
oklch(30.8% 0.113 307.1)
#3F1A5B 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) | #002B5D | 0.094 |
| Deuteranopia (no green cones) | #0B2D5A | 0.089 |
| Tritanopia (no blue cones) | #3A2838 | 0.080 |
| Achromatopsia (no color) | #2C2C2C | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F1A5B
#3F1A5B
oklch(30.8% 0.113 307.1)
- #253700
#253700
oklch(30.9% 0.08 127.1)
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 #3F1A5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.047
- Deep Violet #490648 ΔE 0.050
- Royal Purple #4B006E ΔE 0.050
- Eggplant Purple #430541 ΔE 0.058
- Dark Purple #35063E ΔE 0.068
- Grape Purple #5D1451 ΔE 0.069
- Deep Purple #36013F ΔE 0.071
- Indigo #4B0082 ΔE 0.074
Use #3F1A5B 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.