#3F184C
Closest named color: Deep Violet (#490648). oklch(29.4% 0.098 316.8), rgb(63, 24, 76).
Aa
White text reads best on this color (14.51:1).
About this color
#3F184C is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.098 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.035 away. White text reads best on it, at 14.51:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.44:1 |
| White text | 14.51:1 |
Values
| HEX | #3F184C |
| RGB | rgb(63, 24, 76) |
| HSL | hsl(285, 52%, 20%) |
| OKLCH | oklch(29.4% 0.098 316.8) |
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 #3F184C | 14.51:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #3F184C | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #3F184C text on white | 14.51:1 | AAA | Lc 100.9 | Preferred for body text |
| #3F184C text on black | 1.44:1 | 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
#FAF2FD
oklch(97% 0.017 316.9)
-
Step 100
100
#F3E3F9
oklch(93.5% 0.034 316.9)
-
Step 200
200
#EBCDF6
oklch(88.6% 0.064 317)
-
Step 300
300
#DFA9F3
oklch(80.9% 0.117 316.7)
-
Step 400
400
#CE76EC
oklch(70.7% 0.186 317)
-
Step 500
500
#C049E6
oklch(63.1% 0.238 316.8)
-
Step 600
600
#AC19D4
oklch(55.7% 0.259 316.9)
-
Step 700
700
#9300B7
oklch(49.1% 0.24 316.9)
-
Step 800
800
#770D95
oklch(42.7% 0.2 316.4)
-
Step 900
900
#611976
oklch(37.7% 0.155 317.2)
-
Step 950
950 (this color)
#3F184C
oklch(29.4% 0.098 316.8)
#3F184C 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) | #08274E | 0.093 |
| Deuteranopia (no green cones) | #192A4B | 0.080 |
| Tritanopia (no blue cones) | #3E212F | 0.063 |
| Achromatopsia (no color) | #292929 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F184C
#3F184C
oklch(29.4% 0.098 316.8)
- #143500
#143500
oklch(29.2% 0.088 136.5)
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 #3F184C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.035
- Eggplant Purple #430541 ΔE 0.037
- Plum Purple #4E0550 ΔE 0.041
- Dark Purple #35063E ΔE 0.050
- Aubergine #3D0734 ΔE 0.052
- Eggplant #380835 ΔE 0.053
- Deep Purple #36013F ΔE 0.054
- Grape Purple #5D1451 ΔE 0.066
Use #3F184C 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.