#371F57
Closest named color: Deep Violet (#490648). oklch(30.2% 0.098 300.4), rgb(55, 31, 87).
Aa
White text reads best on this color (14.03:1).
About this color
#371F57 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.098 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.061 away. White text reads best on it, at 14.03:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.49:1 |
| White text | 14.03:1 |
Values
| HEX | #371F57 |
| RGB | rgb(55, 31, 87) |
| HSL | hsl(266, 47%, 23%) |
| OKLCH | oklch(30.2% 0.098 300.4) |
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 #371F57 | 14.03:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #371F57 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #371F57 text on white | 14.03:1 | AAA | Lc 100.4 | Preferred for body text |
| #371F57 text on black | 1.49:1 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FD
oklch(93.5% 0.033 300.9)
-
Step 200
200
#DFD0FE
oklch(88.4% 0.064 300)
-
Step 300
300
#CCB0FF
oklch(80.9% 0.113 300.2)
-
Step 400
400
#B481FF
oklch(70.7% 0.182 300.5)
-
Step 500
500
#A358FF
oklch(63.1% 0.236 300.3)
-
Step 600
600
#9032EE
oklch(55.6% 0.257 300.5)
-
Step 700
700
#7B20CF
oklch(49.1% 0.239 300.7)
-
Step 800
800
#631FA8
oklch(42.6% 0.199 300.1)
-
Step 900
900
#512385
oklch(37.8% 0.154 300.5)
-
Step 950
950 (this color)
#371F57
oklch(30.2% 0.098 300.4)
#371F57 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) | #022B59 | 0.074 |
| Deuteranopia (no green cones) | #0D2B56 | 0.068 |
| Tritanopia (no blue cones) | #302B37 | 0.075 |
| Achromatopsia (no color) | #2C2C2C | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #371F57
#371F57
oklch(30.2% 0.098 300.4)
- #2A3300
#2A3300
oklch(30.2% 0.072 119.8)
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 #371F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.061
- Plum Purple #4E0550 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.064
- Eggplant Purple #430541 ΔE 0.064
- Dark Purple #35063E ΔE 0.068
- Royal Purple #4B006E ΔE 0.069
- Prussian Blue #1D3557 ΔE 0.072
- Deep Purple #36013F ΔE 0.073
Use #371F57 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.