#370D51
Closest named color: Dark Purple (#35063E). oklch(27.2% 0.117 308.4), rgb(55, 13, 81).
Aa
White text reads best on this color (15.68:1).
About this color
#370D51 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.117 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.037 away. White text reads best on it, at 15.68:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.33:1 |
| White text | 15.68:1 |
Values
| HEX | #370D51 |
| RGB | rgb(55, 13, 81) |
| HSL | hsl(277, 72%, 18%) |
| OKLCH | oklch(27.2% 0.117 308.4) |
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 #370D51 | 15.68:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #370D51 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #370D51 text on white | 15.68:1 | AAA | Lc 102.0 | Preferred for body text |
| #370D51 text on black | 1.33:1 | 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
#F9F2FF
oklch(97% 0.019 309.8)
-
Step 100
100
#F1E3FF
oklch(93.5% 0.04 308)
-
Step 200
200
#E7CDFF
oklch(88.6% 0.073 308.4)
-
Step 300
300
#D8AAFF
oklch(81% 0.126 308.6)
-
Step 400
400
#C476FF
oklch(70.6% 0.203 308.4)
-
Step 500
500
#B644FF
oklch(63% 0.263 308.3)
-
Step 600
600
#A200ED
oklch(55.6% 0.283 308.4)
-
Step 700
700
#8900C9
oklch(49.1% 0.25 308.5)
-
Step 800
800
#7100A6
oklch(42.7% 0.217 308.7)
-
Step 900
900
#5D0A89
oklch(37.6% 0.184 308.5)
-
Step 950
950 (this color)
#370D51
oklch(27.2% 0.117 308.4)
#370D51 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) | #002253 | 0.093 |
| Deuteranopia (no green cones) | #002450 | 0.095 |
| Tritanopia (no blue cones) | #331E2F | 0.080 |
| Achromatopsia (no color) | #232323 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370D51
#370D51
oklch(27.2% 0.117 308.4)
- #1C2D00
#1C2D00
oklch(27.2% 0.072 128.5)
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 #370D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.037
- Deep Purple #36013F ΔE 0.039
- Eggplant Purple #430541 ΔE 0.043
- Deep Violet #490648 ΔE 0.046
- Eggplant #380835 ΔE 0.053
- Plum Purple #4E0550 ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.057
- Aubergine #3D0734 ΔE 0.057
Use #370D51 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.