#370728
Closest named color: Dark Plum (#3F012C). oklch(23.5% 0.085 343.5), rgb(55, 7, 40).
Aa
White text reads best on this color (17.16:1).
About this color
#370728 is a very dark, moderately saturated purple. In OKLCH its lightness is 23%, its chroma 0.085 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.021 away. White text reads best on it, at 17.16:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.22:1 |
| White text | 17.16:1 |
Values
| HEX | #370728 |
| RGB | rgb(55, 7, 40) |
| HSL | hsl(319, 77%, 12%) |
| OKLCH | oklch(23.5% 0.085 343.5) |
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 #370728 | 17.16:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #370728 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #370728 text on white | 17.16:1 | AAA | Lc 103.5 | Preferred for body text |
| #370728 text on black | 1.22:1 | 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
#FDF2F8
oklch(97.1% 0.014 343.2)
-
Step 100
100
#F9E3EF
oklch(93.7% 0.029 343.6)
-
Step 200
200
#F5CBE3
oklch(88.5% 0.057 343)
-
Step 300
300
#EFA7D1
oklch(81% 0.1 343.7)
-
Step 400
400
#E473BA
oklch(70.7% 0.162 343.6)
-
Step 500
500
#D847A9
oklch(63.1% 0.206 343.2)
-
Step 600
600
#C31B94
oklch(55.6% 0.224 343.3)
-
Step 700
700
#A8047E
oklch(49.1% 0.208 343.4)
-
Step 800
800
#890F66
oklch(42.8% 0.172 343.8)
-
Step 900
900
#6E1953
oklch(37.7% 0.134 343.7)
-
Step 950
950 (this color)
#370728
oklch(23.5% 0.085 343.5)
#370728 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) | #0C1629 | 0.095 |
| Deuteranopia (no green cones) | #1B1E27 | 0.082 |
| Tritanopia (no blue cones) | #3B0716 | 0.037 |
| Achromatopsia (no color) | #1B1B1B | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370728
#370728
oklch(23.5% 0.085 343.5)
- #002517
#002517
oklch(23.4% 0.05 163.4)
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 #370728, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.021
- Eggplant #380835 ΔE 0.025
- Aubergine #3D0734 ΔE 0.026
- Dark Purple #35063E ΔE 0.044
- Deep Purple #36013F ΔE 0.048
- Very Dark Purple #2A0134 ΔE 0.048
- Eggplant Purple #430541 ΔE 0.054
- Midnight Purple #280137 ΔE 0.056
Use #370728 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.