#3F1B68
Closest named color: Royal Purple (#4B006E). oklch(32% 0.127 300.7), rgb(63, 27, 104).
Aa
White text reads best on this color (13.39:1).
About this color
#3F1B68 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.127 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.041 away. White text reads best on it, at 13.39:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.56:1 |
| White text | 13.39:1 |
Values
| HEX | #3F1B68 |
| RGB | rgb(63, 27, 104) |
| HSL | hsl(268, 59%, 26%) |
| OKLCH | oklch(32% 0.127 300.7) |
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 #3F1B68 | 13.39:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #3F1B68 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #3F1B68 text on white | 13.39:1 | AAA | Lc 99.3 | Preferred for body text |
| #3F1B68 text on black | 1.56:1 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FF
oklch(93.6% 0.036 299.7)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CDAFFF
oklch(80.9% 0.115 301.1)
-
Step 400
400
#B481FF
oklch(70.7% 0.182 300.5)
-
Step 500
500
#A457FF
oklch(63.1% 0.238 300.8)
-
Step 600
600
#9504FF
oklch(55.6% 0.294 300.6)
-
Step 700
700
#7E00D9
oklch(49.1% 0.261 300.7)
-
Step 800
800
#6800B4
oklch(42.8% 0.227 300.9)
-
Step 900
900
#570098
oklch(37.8% 0.201 300.9)
-
Step 950
950 (this color)
#3F1B68
oklch(32% 0.127 300.7)
#3F1B68 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) | #002F6A | 0.090 |
| Deuteranopia (no green cones) | #002E66 | 0.091 |
| Tritanopia (no blue cones) | #362D3F | 0.094 |
| Achromatopsia (no color) | #2F2F2F | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F1B68
#3F1B68
oklch(32% 0.127 300.7)
- #2E3800
#2E3800
oklch(32% 0.076 120.1)
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 #3F1B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.041
- Indigo #4B0082 ΔE 0.055
- Plum Purple #4E0550 ΔE 0.062
- Deep Violet #490648 ΔE 0.069
- Midnight Blue #191970 ΔE 0.075
- Eggplant Purple #430541 ΔE 0.079
- Grape Purple #5D1451 ΔE 0.079
- Dark Indigo #1F0954 ΔE 0.088
Use #3F1B68 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.