#3F1B6E
Closest named color: Royal Purple (#4B006E). oklch(32.5% 0.135 298.3), rgb(63, 27, 110).
Aa
White text reads best on this color (13.18:1).
About this color
#3F1B6E is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.135 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.040 away. White text reads best on it, at 13.18:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.59:1 |
| White text | 13.18:1 |
Values
| HEX | #3F1B6E |
| RGB | rgb(63, 27, 110) |
| HSL | hsl(266, 61%, 27%) |
| OKLCH | oklch(32.5% 0.135 298.3) |
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 #3F1B6E | 13.18:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #3F1B6E | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #3F1B6E text on white | 13.18:1 | AAA | Lc 98.9 | Preferred for body text |
| #3F1B6E 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#ECE6FB
oklch(93.6% 0.029 298.9)
-
Step 200
200
#DDD2FA
oklch(88.5% 0.056 297.8)
-
Step 300
300
#C9B3FA
oklch(81% 0.101 298.3)
-
Step 400
400
#AE87F7
oklch(70.7% 0.162 298.2)
-
Step 500
500
#9C64F3
oklch(63.2% 0.206 298.3)
-
Step 600
600
#8844E2
oklch(55.6% 0.225 298.4)
-
Step 700
700
#7334C4
oklch(49% 0.209 298.1)
-
Step 800
800
#5E2D9E
oklch(42.7% 0.172 298.6)
-
Step 900
900 (this color)
#3F1B6E
oklch(32.5% 0.135 298.3)
-
Step 950
950
#2C1A4A
oklch(27% 0.086 297.6)
#3F1B6E 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) | #003070 | 0.089 |
| Deuteranopia (no green cones) | #002F6C | 0.089 |
| Tritanopia (no blue cones) | #333042 | 0.103 |
| Achromatopsia (no color) | #303030 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F1B6E
#3F1B6E
oklch(32.5% 0.135 298.3)
- #313900
#313900
oklch(32.6% 0.076 118.1)
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 #3F1B6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.040
- Indigo #4B0082 ΔE 0.048
- Plum Purple #4E0550 ΔE 0.070
- Midnight Blue #191970 ΔE 0.073
- Deep Violet #490648 ΔE 0.078
- Grape Purple #5D1451 ΔE 0.085
- Eggplant Purple #430541 ΔE 0.088
- Dark Indigo #1F0954 ΔE 0.092
Use #3F1B6E 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.