#3F172D
Closest named color: Aubergine (#3D0734). oklch(27.4% 0.069 348.5), rgb(63, 23, 45).
Aa
White text reads best on this color (15.30:1).
About this color
#3F172D is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.069 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.040 away. White text reads best on it, at 15.30:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.37:1 |
| White text | 15.30:1 |
Values
| HEX | #3F172D |
| RGB | rgb(63, 23, 45) |
| HSL | hsl(327, 47%, 17%) |
| OKLCH | oklch(27.4% 0.069 348.5) |
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 #3F172D | 15.30:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #3F172D | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #3F172D text on white | 15.30:1 | AAA | Lc 101.9 | Preferred for body text |
| #3F172D text on black | 1.37:1 | 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
#FCF3F7
oklch(97.2% 0.011 348.4)
-
Step 100
100
#F7E4EC
oklch(93.6% 0.023 350.1)
-
Step 200
200
#F1CEDE
oklch(88.6% 0.044 348.7)
-
Step 300
300
#E9ABC9
oklch(80.8% 0.082 348.5)
-
Step 400
400
#DC7DAE
oklch(70.8% 0.131 348.7)
-
Step 500
500
#CF589A
oklch(63.1% 0.167 348.5)
-
Step 600
600
#BB3885
oklch(55.7% 0.183 348.5)
-
Step 700
700
#A02970
oklch(49% 0.169 348.6)
-
Step 800
800
#82245C
oklch(42.6% 0.141 348.1)
-
Step 900
900
#69244B
oklch(37.7% 0.109 348.6)
-
Step 950
950 (this color)
#3F172D
oklch(27.4% 0.069 348.5)
#3F172D 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) | #1B212E | 0.076 |
| Deuteranopia (no green cones) | #26282C | 0.069 |
| Tritanopia (no blue cones) | #441620 | 0.026 |
| Achromatopsia (no color) | #252525 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F172D
#3F172D
oklch(27.4% 0.069 348.5)
- #003022
#003022
oklch(27.5% 0.056 167.7)
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 #3F172D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.040
- Dark Plum #3F012C ΔE 0.044
- Eggplant #380835 ΔE 0.046
- Eggplant Purple #430541 ΔE 0.055
- Dark Purple #35063E ΔE 0.062
- Deep Violet #490648 ΔE 0.064
- Deep Purple #36013F ΔE 0.069
- Dark Maroon #3C0008 ΔE 0.069
Use #3F172D 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.