#3F183B
Closest named color: Aubergine (#3D0734). oklch(28.3% 0.08 331.5), rgb(63, 24, 59).
Aa
White text reads best on this color (14.94:1).
About this color
#3F183B is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.080 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.036 away. White text reads best on it, at 14.94:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.40:1 |
| White text | 14.94:1 |
Values
| HEX | #3F183B |
| RGB | rgb(63, 24, 59) |
| HSL | hsl(306, 45%, 17%) |
| OKLCH | oklch(28.3% 0.08 331.5) |
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 #3F183B | 14.94:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #3F183B | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #3F183B text on white | 14.94:1 | AAA | Lc 101.5 | Preferred for body text |
| #3F183B text on black | 1.40:1 | 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 950.
-
Step 50
50
#FBF2F9
oklch(97% 0.013 333)
-
Step 100
100
#F5E4F2
oklch(93.6% 0.026 331.5)
-
Step 200
200
#EFCDE9
oklch(88.5% 0.053 332)
-
Step 300
300
#E5AADC
oklch(80.8% 0.095 331.8)
-
Step 400
400
#D67BCB
oklch(70.8% 0.151 331.6)
-
Step 500
500
#C854BD
oklch(63.1% 0.192 331.4)
-
Step 600
600
#B332A9
oklch(55.6% 0.209 331.4)
-
Step 700
700
#9A2291
oklch(49.1% 0.195 331.5)
-
Step 800
800
#7D1F76
oklch(42.7% 0.162 331.3)
-
Step 900
900
#65215F
oklch(37.7% 0.126 331.4)
-
Step 950
950 (this color)
#3F183B
oklch(28.3% 0.08 331.5)
#3F183B 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) | #16233C | 0.081 |
| Deuteranopia (no green cones) | #22293A | 0.072 |
| Tritanopia (no blue cones) | #421B27 | 0.041 |
| Achromatopsia (no color) | #272727 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F183B
#3F183B
oklch(28.3% 0.08 331.5)
- #003415
#003415
oklch(28.4% 0.076 151.3)
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 #3F183B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.036
- Eggplant Purple #430541 ΔE 0.038
- Eggplant #380835 ΔE 0.040
- Deep Violet #490648 ΔE 0.044
- Dark Plum #3F012C ΔE 0.048
- Dark Purple #35063E ΔE 0.049
- Deep Purple #36013F ΔE 0.056
- Plum Purple #4E0550 ΔE 0.058
Use #3F183B 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.