#3F2C5E
Closest named color: Prussian Blue (#1D3557). oklch(34.1% 0.087 299.3), rgb(63, 44, 94).
Aa
White text reads best on this color (12.11:1).
About this color
#3F2C5E is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.087 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 0.060 away. White text reads best on it, at 12.11:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.73:1 |
| White text | 12.11:1 |
Values
| HEX | #3F2C5E |
| RGB | rgb(63, 44, 94) |
| HSL | hsl(263, 36%, 27%) |
| OKLCH | oklch(34.1% 0.087 299.3) |
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 #3F2C5E | 12.11:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #3F2C5E | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #3F2C5E text on white | 12.11:1 | AAA | Lc 97.5 | Preferred for body text |
| #3F2C5E text on black | 1.73:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F5
oklch(93.5% 0.019 299.1)
-
Step 200
200
#DCD4EE
oklch(88.4% 0.036 299.7)
-
Step 300
300
#C6B8E5
oklch(80.9% 0.064 299.2)
-
Step 400
400
#AA92D8
oklch(70.7% 0.103 299.5)
-
Step 500
500
#9575CE
oklch(63% 0.133 299.1)
-
Step 600
600
#805CBB
oklch(55.5% 0.145 299.1)
-
Step 700
700
#6D4BA1
oklch(49.1% 0.135 299.7)
-
Step 800
800
#583E82
oklch(42.6% 0.111 299.3)
-
Step 900
900 (this color)
#3F2C5E
oklch(34.1% 0.087 299.3)
-
Step 950
950
#2A203D
oklch(27% 0.054 298.6)
#3F2C5E 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) | #1B3660 | 0.058 |
| Deuteranopia (no green cones) | #20355D | 0.053 |
| Tritanopia (no blue cones) | #393540 | 0.067 |
| Achromatopsia (no color) | #363636 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2C5E
#3F2C5E
oklch(34.1% 0.087 299.3)
- #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 #3F2C5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.063
- Gunmetal #293241 ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.076
- Marine Blue #01386A ΔE 0.076
- Grape Purple #5D1451 ΔE 0.077
- Marine #042E60 ΔE 0.077
- Onyx #343A40 ΔE 0.079
Use #3F2C5E 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.