#3F2F5D
Closest named color: Prussian Blue (#1D3557). oklch(34.6% 0.08 298.2), rgb(63, 47, 93).
Aa
White text reads best on this color (11.82:1).
About this color
#3F2F5D is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.080 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.056 away. White text reads best on it, at 11.82:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.77:1 |
| White text | 11.82:1 |
Values
| HEX | #3F2F5D |
| RGB | rgb(63, 47, 93) |
| HSL | hsl(261, 33%, 27%) |
| OKLCH | oklch(34.6% 0.08 298.2) |
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 #3F2F5D | 11.82:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #3F2F5D | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #3F2F5D text on white | 11.82:1 | AAA | Lc 97.0 | Preferred for body text |
| #3F2F5D text on black | 1.77:1 | 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
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DBD5ED
oklch(88.5% 0.033 297.2)
-
Step 300
300
#C5B9E3
oklch(80.9% 0.06 298.1)
-
Step 400
400
#A894D5
oklch(70.8% 0.095 298.1)
-
Step 500
500
#9378C9
oklch(63.1% 0.122 298.2)
-
Step 600
600
#7E5FB6
oklch(55.6% 0.133 298.4)
-
Step 700
700
#6A4E9D
oklch(49% 0.124 298)
-
Step 800
800
#56417F
oklch(42.7% 0.101 297.6)
-
Step 900
900 (this color)
#3F2F5D
oklch(34.6% 0.08 298.2)
-
Step 950
950
#2A213C
oklch(27.2% 0.05 298.4)
#3F2F5D 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) | #21385F | 0.050 |
| Deuteranopia (no green cones) | #24375C | 0.047 |
| Tritanopia (no blue cones) | #393741 | 0.062 |
| Achromatopsia (no color) | #373737 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2F5D
#3F2F5D
oklch(34.6% 0.08 298.2)
- #363F01
#363F01
oklch(34.7% 0.08 118.5)
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 #3F2F5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.066
- Dark Blue Grey #1F3B4D ΔE 0.069
- Onyx #343A40 ΔE 0.072
- Marine Blue #01386A ΔE 0.074
- Dark Grey Blue #29465B ΔE 0.076
- Marine #042E60 ΔE 0.077
Use #3F2F5D 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.