#3F296D
Closest named color: Royal Purple (#4B006E). oklch(34.6% 0.113 294.7), rgb(63, 41, 109).
Aa
White text reads best on this color (12.00:1).
About this color
#3F296D is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.113 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.066 away. White text reads best on it, at 12.00:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.74:1 |
| White text | 12.00:1 |
Values
| HEX | #3F296D |
| RGB | rgb(63, 41, 109) |
| HSL | hsl(259, 45%, 29%) |
| OKLCH | oklch(34.6% 0.113 294.7) |
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 #3F296D | 12.00:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #3F296D | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #3F296D text on white | 12.00:1 | AAA | Lc 97.2 | Preferred for body text |
| #3F296D text on black | 1.74:1 | 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
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#DBD4F6
oklch(88.6% 0.047 294.9)
-
Step 300
300
#C4B6F2
oklch(80.9% 0.085 295.1)
-
Step 400
400
#A78EEC
oklch(70.7% 0.136 294.9)
-
Step 500
500
#926FE6
oklch(63.1% 0.174 294.5)
-
Step 600
600
#7E54D4
oklch(55.7% 0.188 294.6)
-
Step 700
700
#6A43B8
oklch(49.1% 0.176 294.3)
-
Step 800
800
#573895
oklch(42.8% 0.146 294.8)
-
Step 900
900 (this color)
#3F296D
oklch(34.6% 0.113 294.7)
-
Step 950
950
#291E45
oklch(27% 0.071 294.2)
#3F296D 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) | #00376F | 0.077 |
| Deuteranopia (no green cones) | #08356C | 0.073 |
| Tritanopia (no blue cones) | #333846 | 0.091 |
| Achromatopsia (no color) | #363636 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F296D
#3F296D
oklch(34.6% 0.113 294.7)
- #393E00
#393E00
oklch(34.7% 0.079 114.8)
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 #3F296D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.066
- Indigo #4B0082 ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.075
- Marine Blue #01386A ΔE 0.079
- Marine #042E60 ΔE 0.081
- Midnight Blue #191970 ΔE 0.082
- Plum Purple #4E0550 ΔE 0.083
Use #3F296D 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.