#3F2E6A
Closest named color: Prussian Blue (#1D3557). oklch(35.3% 0.101 293.7), rgb(63, 46, 106).
Aa
White text reads best on this color (11.60:1).
About this color
#3F2E6A is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.101 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 0.066 away. White text reads best on it, at 11.60:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.81:1 |
| White text | 11.60:1 |
Values
| HEX | #3F2E6A |
| RGB | rgb(63, 46, 106) |
| HSL | hsl(257, 39%, 30%) |
| OKLCH | oklch(35.3% 0.101 293.7) |
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 #3F2E6A | 11.60:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #3F2E6A | 1.81:1 | Fails | Lc 7.4 | Not readable |
| #3F2E6A text on white | 11.60:1 | AAA | Lc 96.5 | Preferred for body text |
| #3F2E6A text on black | 1.81:1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F3
oklch(88.4% 0.043 294.4)
-
Step 300
300
#C2B8ED
oklch(80.9% 0.075 293.3)
-
Step 400
400
#A491E5
oklch(70.6% 0.122 293.4)
-
Step 500
500
#8F74DD
oklch(63.1% 0.154 293.3)
-
Step 600
600
#7B5ACA
oklch(55.7% 0.167 293.9)
-
Step 700
700
#6749AF
oklch(49.1% 0.156 293.4)
-
Step 800
800
#543C8E
oklch(42.6% 0.13 293.6)
-
Step 900
900 (this color)
#3F2E6A
oklch(35.3% 0.101 293.7)
-
Step 950
950
#281F42
oklch(26.9% 0.064 293.5)
#3F2E6A 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) | #14396C | 0.062 |
| Deuteranopia (no green cones) | #183869 | 0.059 |
| Tritanopia (no blue cones) | #343A47 | 0.080 |
| Achromatopsia (no color) | #393939 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2E6A
#3F2E6A
oklch(35.3% 0.101 293.7)
- #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 #3F2E6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.068
- Marine Blue #01386A ΔE 0.073
- Royal Purple #4B006E ΔE 0.078
- Twilight Blue #0A437A ΔE 0.079
- Marine #042E60 ΔE 0.079
- Space Cadet #2B2D42 ΔE 0.081
- Indigo #4B0082 ΔE 0.082
Use #3F2E6A 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.