#381C57
Closest named color: Deep Violet (#490648). oklch(29.8% 0.103 302.4), rgb(56, 28, 87).
Aa
White text reads best on this color (14.26:1).
About this color
#381C57 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.103 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.056 away. White text reads best on it, at 14.26:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.47:1 |
| White text | 14.26:1 |
Values
| HEX | #381C57 |
| RGB | rgb(56, 28, 87) |
| HSL | hsl(268, 51%, 23%) |
| OKLCH | oklch(29.8% 0.103 302.4) |
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 #381C57 | 14.26:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #381C57 | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #381C57 text on white | 14.26:1 | AAA | Lc 100.7 | Preferred for body text |
| #381C57 text on black | 1.47:1 | 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
#EEE5FE
oklch(93.6% 0.035 302.1)
-
Step 200
200
#E1CFFF
oklch(88.5% 0.068 302.1)
-
Step 300
300
#CFAEFF
oklch(80.8% 0.117 302.6)
-
Step 400
400
#B87FFF
oklch(70.8% 0.186 302.5)
-
Step 500
500
#A854FF
oklch(63.1% 0.242 302.4)
-
Step 600
600
#9524F2
oklch(55.6% 0.271 302.3)
-
Step 700
700
#800ED2
oklch(49.1% 0.252 302.7)
-
Step 800
800
#6716AA
oklch(42.7% 0.208 302.2)
-
Step 900
900
#541E87
oklch(37.8% 0.163 302.4)
-
Step 950
950 (this color)
#381C57
oklch(29.8% 0.103 302.4)
#381C57 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) | #002A59 | 0.080 |
| Deuteranopia (no green cones) | #092A56 | 0.075 |
| Tritanopia (no blue cones) | #322936 | 0.078 |
| Achromatopsia (no color) | #2A2A2A | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #381C57
#381C57
oklch(29.8% 0.103 302.4)
- #273300
#273300
oklch(29.9% 0.073 122.8)
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 #381C57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.056
- Plum Purple #4E0550 ΔE 0.059
- Eggplant Purple #430541 ΔE 0.059
- Dark Purple #35063E ΔE 0.063
- Royal Purple #4B006E ΔE 0.065
- Deep Purple #36013F ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.070
- Dark Indigo #1F0954 ΔE 0.070
Use #381C57 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.