#40172F
Closest named color: Aubergine (#3D0734). oklch(27.7% 0.072 346.6), rgb(64, 23, 47).
Aa
White text reads best on this color (15.19:1).
About this color
#40172F is a dark, moderately saturated red. In OKLCH its lightness is 28%, its chroma 0.072 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.039 away. White text reads best on it, at 15.19:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.38:1 |
| White text | 15.19:1 |
Values
| HEX | #40172F |
| RGB | rgb(64, 23, 47) |
| HSL | hsl(325, 47%, 17%) |
| OKLCH | oklch(27.7% 0.072 346.6) |
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 #40172F | 15.19:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #40172F | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #40172F text on white | 15.19:1 | AAA | Lc 101.8 | Preferred for body text |
| #40172F text on black | 1.38:1 | 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
#F7E4ED
oklch(93.7% 0.024 347.2)
-
Step 200
200
#F2CDDF
oklch(88.5% 0.048 347.2)
-
Step 300
300
#EAABCC
oklch(81% 0.085 346.4)
-
Step 400
400
#DD7BB1
oklch(70.7% 0.137 347)
-
Step 500
500
#D0569E
oklch(63.1% 0.173 346.7)
-
Step 600
600
#BB3589
oklch(55.5% 0.189 346.5)
-
Step 700
700
#A12674
oklch(49.1% 0.176 346.7)
-
Step 800
800
#83225F
oklch(42.7% 0.146 346.4)
-
Step 900
900
#6A224D
oklch(37.7% 0.114 347.1)
-
Step 950
950 (this color)
#40172F
oklch(27.7% 0.072 346.6)
#40172F 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) | #1B2130 | 0.077 |
| Deuteranopia (no green cones) | #26282E | 0.070 |
| Tritanopia (no blue cones) | #441620 | 0.029 |
| Achromatopsia (no color) | #262626 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40172F
#40172F
oklch(27.7% 0.072 346.6)
- #003122
#003122
oklch(27.8% 0.057 166.5)
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 #40172F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.039
- Dark Plum #3F012C ΔE 0.043
- Eggplant #380835 ΔE 0.045
- Eggplant Purple #430541 ΔE 0.052
- Dark Purple #35063E ΔE 0.060
- Deep Violet #490648 ΔE 0.060
- Deep Purple #36013F ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.072
Use #40172F 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.