#370729
Closest named color: Dark Plum (#3F012C). oklch(23.5% 0.086 342.3), rgb(55, 7, 41).
Aa
White text reads best on this color (17.14:1).
About this color
#370729 is a very dark, moderately saturated purple. In OKLCH its lightness is 24%, its chroma 0.086 and its hue 342°. 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 17.14:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.22:1 |
| White text | 17.14:1 |
Values
| HEX | #370729 |
| RGB | rgb(55, 7, 41) |
| HSL | hsl(317, 77%, 12%) |
| OKLCH | oklch(23.5% 0.086 342.3) |
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 #370729 | 17.14:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #370729 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #370729 text on white | 17.14:1 | AAA | Lc 103.4 | Preferred for body text |
| #370729 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
#FCF2F8
oklch(97.1% 0.013 340.5)
-
Step 100
100
#F9E3EF
oklch(93.7% 0.029 343.6)
-
Step 200
200
#F5CBE3
oklch(88.5% 0.057 343)
-
Step 300
300
#EFA6D3
oklch(80.9% 0.103 342.1)
-
Step 400
400
#E373BC
oklch(70.7% 0.163 342.3)
-
Step 500
500
#D847AB
oklch(63.1% 0.208 342.5)
-
Step 600
600
#C31A97
oklch(55.7% 0.226 342.2)
-
Step 700
700
#A80280
oklch(49.1% 0.21 342.5)
-
Step 800
800
#880E68
oklch(42.6% 0.174 342.4)
-
Step 900
900
#6E1855
oklch(37.7% 0.136 342.3)
-
Step 950
950 (this color)
#370729
oklch(23.5% 0.086 342.3)
#370729 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) | #0C162A | 0.094 |
| Deuteranopia (no green cones) | #1B1E28 | 0.081 |
| Tritanopia (no blue cones) | #3B0717 | 0.037 |
| Achromatopsia (no color) | #1B1B1B | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370729
#370729
oklch(23.5% 0.086 342.3)
- #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 #370729, 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 0.023
- Aubergine #3D0734 ΔE 0.025
- Dark Purple #35063E ΔE 0.042
- Deep Purple #36013F ΔE 0.046
- Very Dark Purple #2A0134 ΔE 0.047
- Eggplant Purple #430541 ΔE 0.052
- Midnight Purple #280137 ΔE 0.054
Use #370729 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.