#3F2F61
Closest named color: Prussian Blue (#1D3557). oklch(34.9% 0.086 296.5), rgb(63, 47, 97).
Aa
White text reads best on this color (11.72:1).
About this color
#3F2F61 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.086 and its hue 296°. 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 11.72:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.79:1 |
| White text | 11.72:1 |
Values
| HEX | #3F2F61 |
| RGB | rgb(63, 47, 97) |
| HSL | hsl(259, 35%, 28%) |
| OKLCH | oklch(34.9% 0.086 296.5) |
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 #3F2F61 | 11.72:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #3F2F61 | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #3F2F61 text on white | 11.72:1 | AAA | Lc 96.8 | Preferred for body text |
| #3F2F61 text on black | 1.79:1 | 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
#EBE8F5
oklch(93.7% 0.018 296.6)
-
Step 200
200
#DBD5EF
oklch(88.6% 0.036 296.2)
-
Step 300
300
#C4B9E6
oklch(81% 0.064 296.2)
-
Step 400
400
#A793D9
oklch(70.7% 0.102 296.8)
-
Step 500
500
#9277CF
oklch(63.2% 0.131 296.6)
-
Step 600
600
#7D5EBC
oklch(55.7% 0.143 296.7)
-
Step 700
700
#694DA2
oklch(49.1% 0.133 296.4)
-
Step 800
800
#564083
oklch(42.8% 0.109 296.7)
-
Step 900
900 (this color)
#3F2F61
oklch(34.9% 0.086 296.5)
-
Step 950
950
#29203E
oklch(27% 0.055 296.3)
#3F2F61 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) | #1E3863 | 0.053 |
| Deuteranopia (no green cones) | #213760 | 0.050 |
| Tritanopia (no blue cones) | #373843 | 0.067 |
| Achromatopsia (no color) | #383838 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2F61
#3F2F61
oklch(34.9% 0.086 296.5)
- #383F00
#383F00
oklch(34.9% 0.08 116.6)
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 #3F2F61, 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 0.067
- Gunmetal #293241 ΔE 0.072
- Marine Blue #01386A ΔE 0.072
- Dark Blue Grey #1F3B4D ΔE 0.073
- Marine #042E60 ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.077
- Onyx #343A40 ΔE 0.077
Use #3F2F61 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.