#3F2969
Closest named color: Royal Purple (#4B006E). oklch(34.3% 0.108 296.1), rgb(63, 41, 105).
Aa
White text reads best on this color (12.12:1).
About this color
#3F2969 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.108 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.067 away. White text reads best on it, at 12.12:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.73:1 |
| White text | 12.12:1 |
Values
| HEX | #3F2969 |
| RGB | rgb(63, 41, 105) |
| HSL | hsl(261, 44%, 29%) |
| OKLCH | oklch(34.3% 0.108 296.1) |
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 #3F2969 | 12.12:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #3F2969 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #3F2969 text on white | 12.12:1 | AAA | Lc 97.4 | Preferred for body text |
| #3F2969 text on black | 1.73:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DBD4F4
oklch(88.5% 0.044 295.5)
-
Step 300
300
#C5B6EF
oklch(80.8% 0.081 296.6)
-
Step 400
400
#A88FE8
oklch(70.8% 0.129 295.9)
-
Step 500
500
#9470E0
oklch(63.1% 0.165 296.2)
-
Step 600
600
#7F55CE
oklch(55.5% 0.18 296)
-
Step 700
700
#6C45B2
oklch(49.2% 0.166 296.2)
-
Step 800
800
#583990
oklch(42.7% 0.138 296.5)
-
Step 900
900 (this color)
#3F2969
oklch(34.3% 0.108 296.1)
-
Step 950
950
#2A1E43
oklch(27% 0.067 296.6)
#3F2969 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) | #06366B | 0.074 |
| Deuteranopia (no green cones) | #103568 | 0.069 |
| Tritanopia (no blue cones) | #353744 | 0.086 |
| Achromatopsia (no color) | #363636 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2969
#3F2969
oklch(34.3% 0.108 296.1)
- #373D00
#373D00
oklch(34.2% 0.078 115.8)
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 #3F2969, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.071
- Indigo #4B0082 ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.076
- Marine Blue #01386A ΔE 0.078
- Plum Purple #4E0550 ΔE 0.080
- Marine #042E60 ΔE 0.080
- Grape Purple #5D1451 ΔE 0.081
Use #3F2969 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.