#3F2E68
Closest named color: Prussian Blue (#1D3557). oklch(35.2% 0.098 294.3), rgb(63, 46, 104).
Aa
White text reads best on this color (11.65:1).
About this color
#3F2E68 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.098 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.064 away. White text reads best on it, at 11.65:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.80:1 |
| White text | 11.65:1 |
Values
| HEX | #3F2E68 |
| RGB | rgb(63, 46, 104) |
| HSL | hsl(258, 39%, 29%) |
| OKLCH | oklch(35.2% 0.098 294.3) |
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 #3F2E68 | 11.65:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #3F2E68 | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #3F2E68 text on white | 11.65:1 | AAA | Lc 96.6 | Preferred for body text |
| #3F2E68 text on black | 1.80:1 | 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
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD4F2
oklch(88.4% 0.041 294.7)
-
Step 300
300
#C3B8EC
oklch(80.9% 0.073 294.4)
-
Step 400
400
#A592E2
oklch(70.8% 0.116 294.1)
-
Step 500
500
#9074DA
oklch(63% 0.15 294.3)
-
Step 600
600
#7B5AC7
oklch(55.5% 0.163 294.4)
-
Step 700
700
#684AAC
oklch(49.1% 0.151 294.3)
-
Step 800
800
#553D8C
oklch(42.8% 0.126 294.5)
-
Step 900
900 (this color)
#3F2E68
oklch(35.2% 0.098 294.3)
-
Step 950
950
#291F41
oklch(26.9% 0.062 295.5)
#3F2E68 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) | #16396A | 0.061 |
| Deuteranopia (no green cones) | #1A3767 | 0.057 |
| Tritanopia (no blue cones) | #353A46 | 0.079 |
| Achromatopsia (no color) | #383838 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2E68
#3F2E68
oklch(35.2% 0.098 294.3)
- #3A3F00
#3A3F00
oklch(35.1% 0.079 114.7)
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 #3F2E68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.070
- Marine Blue #01386A ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.077
- Marine #042E60 ΔE 0.078
- Royal Purple #4B006E ΔE 0.079
- Twilight Blue #0A437A ΔE 0.079
- Dark Blue Grey #1F3B4D ΔE 0.082
Use #3F2E68 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.