#3F2D5D
Closest named color: Prussian Blue (#1D3557). oklch(34.2% 0.083 299.3), rgb(63, 45, 93).
Aa
White text reads best on this color (12.03:1).
About this color
#3F2D5D is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.083 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.058 away. White text reads best on it, at 12.03:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.74:1 |
| White text | 12.03:1 |
Values
| HEX | #3F2D5D |
| RGB | rgb(63, 45, 93) |
| HSL | hsl(263, 35%, 27%) |
| OKLCH | oklch(34.2% 0.083 299.3) |
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 #3F2D5D | 12.03:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #3F2D5D | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #3F2D5D text on white | 12.03:1 | AAA | Lc 97.4 | Preferred for body text |
| #3F2D5D 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE7F5
oklch(93.5% 0.019 299.1)
-
Step 200
200
#DCD5ED
oklch(88.6% 0.033 299)
-
Step 300
300
#C6B8E4
oklch(80.9% 0.063 299.5)
-
Step 400
400
#A993D6
oklch(70.8% 0.099 298.9)
-
Step 500
500
#9576CB
oklch(63% 0.128 299.5)
-
Step 600
600
#805EB8
oklch(55.7% 0.138 299.3)
-
Step 700
700
#6C4D9F
oklch(49.2% 0.129 299)
-
Step 800
800
#583F80
oklch(42.6% 0.107 299.6)
-
Step 900
900 (this color)
#3F2D5D
oklch(34.2% 0.083 299.3)
-
Step 950
950
#2A203C
oklch(26.9% 0.052 299.3)
#3F2D5D 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) | #1E365F | 0.054 |
| Deuteranopia (no green cones) | #22365C | 0.051 |
| Tritanopia (no blue cones) | #393640 | 0.066 |
| Achromatopsia (no color) | #363636 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2D5D
#3F2D5D
oklch(34.2% 0.083 299.3)
- #343E00
#343E00
oklch(34.2% 0.081 119.4)
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 #3F2D5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.062
- Gunmetal #293241 ΔE 0.068
- Dark Blue Grey #1F3B4D ΔE 0.073
- Marine Blue #01386A ΔE 0.076
- Onyx #343A40 ΔE 0.076
- Marine #042E60 ΔE 0.077
- Grape Purple #5D1451 ΔE 0.077
Use #3F2D5D 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.