#3F174A
Closest named color: Deep Violet (#490648). oklch(29.1% 0.098 318.4), rgb(63, 23, 74).
Aa
White text reads best on this color (14.65:1).
About this color
#3F174A is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.098 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.033 away. White text reads best on it, at 14.65:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.43:1 |
| White text | 14.65:1 |
Values
| HEX | #3F174A |
| RGB | rgb(63, 23, 74) |
| HSL | hsl(287, 53%, 19%) |
| OKLCH | oklch(29.1% 0.098 318.4) |
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 #3F174A | 14.65:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #3F174A | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #3F174A text on white | 14.65:1 | AAA | Lc 101.1 | Preferred for body text |
| #3F174A text on black | 1.43:1 | 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
#FAF2FC
oklch(97% 0.016 319.4)
-
Step 100
100
#F4E3F9
oklch(93.6% 0.034 318.5)
-
Step 200
200
#ECCCF5
oklch(88.5% 0.065 318.8)
-
Step 300
300
#E0A9F1
oklch(81% 0.115 318.1)
-
Step 400
400
#D075EA
oklch(70.7% 0.187 318.4)
-
Step 500
500
#C248E3
oklch(63.1% 0.237 318.2)
-
Step 600
600
#AE18D0
oklch(55.6% 0.257 318.6)
-
Step 700
700
#9500B4
oklch(49.2% 0.238 318.4)
-
Step 800
800
#790C92
oklch(42.7% 0.198 318.4)
-
Step 900
900
#621974
oklch(37.7% 0.154 318.7)
-
Step 950
950 (this color)
#3F174A
oklch(29.1% 0.098 318.4)
#3F174A 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) | #08264C | 0.095 |
| Deuteranopia (no green cones) | #192A49 | 0.082 |
| Tritanopia (no blue cones) | #3F202E | 0.062 |
| Achromatopsia (no color) | #282828 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F174A
#3F174A
oklch(29.1% 0.098 318.4)
- #0F3500
#0F3500
oklch(29% 0.09 138.4)
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 #3F174A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.033
- Eggplant Purple #430541 ΔE 0.034
- Plum Purple #4E0550 ΔE 0.041
- Dark Purple #35063E ΔE 0.047
- Aubergine #3D0734 ΔE 0.048
- Eggplant #380835 ΔE 0.050
- Deep Purple #36013F ΔE 0.051
- Dark Plum #3F012C ΔE 0.064
Use #3F174A 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.