#370D40
Closest named color: Dark Purple (#35063E). oklch(25.8% 0.098 320), rgb(55, 13, 64).
Aa
White text reads best on this color (16.22:1).
About this color
#370D40 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.098 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.014 away. White text reads best on it, at 16.22:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.29:1 |
| White text | 16.22:1 |
Values
| HEX | #370D40 |
| RGB | rgb(55, 13, 64) |
| HSL | hsl(289, 66%, 15%) |
| OKLCH | oklch(25.8% 0.098 320) |
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 #370D40 | 16.22:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #370D40 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #370D40 text on white | 16.22:1 | AAA | Lc 102.7 | Preferred for body text |
| #370D40 text on black | 1.29:1 | 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
#F4E3F8
oklch(93.6% 0.033 319.8)
-
Step 200
200
#EDCCF4
oklch(88.5% 0.065 320.3)
-
Step 300
300
#E2A8EF
oklch(80.9% 0.116 320.1)
-
Step 400
400
#D274E7
oklch(70.6% 0.186 320.1)
-
Step 500
500
#C546E0
oklch(63.1% 0.238 320.1)
-
Step 600
600
#B012CE
oklch(55.6% 0.259 319.8)
-
Step 700
700
#9600B0
oklch(49% 0.235 320)
-
Step 800
800
#7B0890
oklch(42.7% 0.199 320)
-
Step 900
900
#631773
oklch(37.6% 0.156 319.9)
-
Step 950
950 (this color)
#370D40
oklch(25.8% 0.098 320)
#370D40 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) | #001D41 | 0.099 |
| Deuteranopia (no green cones) | #11223F | 0.085 |
| Tritanopia (no blue cones) | #371725 | 0.061 |
| Achromatopsia (no color) | #202020 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370D40
#370D40
oklch(25.8% 0.098 320)
- #072C00
#072C00
oklch(25.7% 0.083 140)
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 #370D40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.014
- Deep Purple #36013F ΔE 0.022
- Eggplant #380835 ΔE 0.022
- Aubergine #3D0734 ΔE 0.028
- Eggplant Purple #430541 ΔE 0.029
- Deep Violet #490648 ΔE 0.043
- Dark Plum #3F012C ΔE 0.045
- Very Dark Purple #2A0134 ΔE 0.048
Use #370D40 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.