#3F2C6C
Closest named color: Dark Slate Blue (#483D8B). oklch(35.1% 0.107 293.9), rgb(63, 44, 108).
Aa
White text reads best on this color (11.74:1).
About this color
#3F2C6C is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.107 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.068 away. White text reads best on it, at 11.74:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.78:1 |
| White text | 11.74:1 |
Values
| HEX | #3F2C6C |
| RGB | rgb(63, 44, 108) |
| HSL | hsl(258, 42%, 30%) |
| OKLCH | oklch(35.1% 0.107 293.9) |
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 #3F2C6C | 11.74:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #3F2C6C | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #3F2C6C text on white | 11.74:1 | AAA | Lc 96.7 | Preferred for body text |
| #3F2C6C text on black | 1.78:1 | 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
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C3B7F0
oklch(80.9% 0.08 294.2)
-
Step 400
400
#A590E9
oklch(70.7% 0.129 293.7)
-
Step 500
500
#9072E2
oklch(63.2% 0.164 293.5)
-
Step 600
600
#7C57CF
oklch(55.6% 0.178 294.1)
-
Step 700
700
#6846B4
oklch(49.1% 0.167 293.6)
-
Step 800
800
#553A91
oklch(42.6% 0.138 294.1)
-
Step 900
900 (this color)
#3F2C6C
oklch(35.1% 0.107 293.9)
-
Step 950
950
#291F44
oklch(27.1% 0.067 293.9)
#3F2C6C 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) | #0B396E | 0.070 |
| Deuteranopia (no green cones) | #11376B | 0.066 |
| Tritanopia (no blue cones) | #333A47 | 0.087 |
| Achromatopsia (no color) | #383838 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2C6C
#3F2C6C
oklch(35.1% 0.107 293.9)
- #3B3F00
#3B3F00
oklch(35.2% 0.079 113.8)
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 #3F2C6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.070
- Royal Purple #4B006E ΔE 0.073
- Marine Blue #01386A ΔE 0.075
- Indigo #4B0082 ΔE 0.076
- Marine #042E60 ΔE 0.080
- Twilight Blue #0A437A ΔE 0.081
- Space Cadet #2B2D42 ΔE 0.084
Use #3F2C6C 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.