#371E57
Closest named color: Deep Violet (#490648). oklch(30.1% 0.099 300.8), rgb(55, 30, 87).
Aa
White text reads best on this color (14.13:1).
About this color
#371E57 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.099 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.060 away. White text reads best on it, at 14.13:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.48:1 |
| White text | 14.13:1 |
Values
| HEX | #371E57 |
| RGB | rgb(55, 30, 87) |
| HSL | hsl(266, 49%, 23%) |
| OKLCH | oklch(30.1% 0.099 300.8) |
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 #371E57 | 14.13:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #371E57 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #371E57 text on white | 14.13:1 | AAA | Lc 100.5 | Preferred for body text |
| #371E57 text on black | 1.48:1 | 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
#EDE5FE
oklch(93.6% 0.035 300.3)
-
Step 200
200
#E0D0FE
oklch(88.5% 0.065 301)
-
Step 300
300
#CDAFFF
oklch(80.9% 0.115 301.1)
-
Step 400
400
#B581FF
oklch(70.8% 0.182 300.9)
-
Step 500
500
#A457FF
oklch(63.1% 0.238 300.8)
-
Step 600
600
#912EF0
oklch(55.6% 0.262 300.8)
-
Step 700
700
#7C1CD1
oklch(49.2% 0.243 300.8)
-
Step 800
800
#641DA9
oklch(42.7% 0.202 300.5)
-
Step 900
900
#512186
oklch(37.6% 0.158 300.5)
-
Step 950
950 (this color)
#371E57
oklch(30.1% 0.099 300.8)
#371E57 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) | #002B59 | 0.077 |
| Deuteranopia (no green cones) | #0B2B56 | 0.070 |
| Tritanopia (no blue cones) | #302A37 | 0.075 |
| Achromatopsia (no color) | #2B2B2B | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #371E57
#371E57
oklch(30.1% 0.099 300.8)
- #293300
#293300
oklch(30.1% 0.072 120.9)
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 #371E57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.060
- Plum Purple #4E0550 ΔE 0.062
- Eggplant Purple #430541 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.066
- Dark Purple #35063E ΔE 0.066
- Royal Purple #4B006E ΔE 0.068
- Deep Purple #36013F ΔE 0.071
- Dark Indigo #1F0954 ΔE 0.071
Use #371E57 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.