#381F55
Closest named color: Deep Violet (#490648). oklch(30.2% 0.095 302.4), rgb(56, 31, 85).
Aa
White text reads best on this color (14.04:1).
About this color
#381F55 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.095 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 0.059 away. White text reads best on it, at 14.04:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.49:1 |
| White text | 14.04:1 |
Values
| HEX | #381F55 |
| RGB | rgb(56, 31, 85) |
| HSL | hsl(268, 47%, 23%) |
| OKLCH | oklch(30.2% 0.095 302.4) |
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 #381F55 | 14.04:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #381F55 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #381F55 text on white | 14.04:1 | AAA | Lc 100.4 | Preferred for body text |
| #381F55 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EEE5FD
oklch(93.6% 0.033 302.7)
-
Step 200
200
#E1D0FC
oklch(88.5% 0.062 302.7)
-
Step 300
300
#CEAFFD
oklch(80.9% 0.112 302.2)
-
Step 400
400
#B780FC
oklch(70.6% 0.181 302.5)
-
Step 500
500
#A658FA
oklch(63% 0.232 302.3)
-
Step 600
600
#9233E8
oklch(55.5% 0.25 302.4)
-
Step 700
700
#7D22CA
oklch(49.1% 0.233 302.5)
-
Step 800
800
#6521A3
oklch(42.6% 0.192 302.3)
-
Step 900
900
#522382
oklch(37.7% 0.151 302.2)
-
Step 950
950 (this color)
#381F55
oklch(30.2% 0.095 302.4)
#381F55 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) | #062B57 | 0.074 |
| Deuteranopia (no green cones) | #112B54 | 0.067 |
| Tritanopia (no blue cones) | #322A36 | 0.072 |
| Achromatopsia (no color) | #2C2C2C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #381F55
#381F55
oklch(30.2% 0.095 302.4)
- #283400
#283400
oklch(30.3% 0.074 122.6)
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 #381F55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.059
- Plum Purple #4E0550 ΔE 0.061
- Eggplant Purple #430541 ΔE 0.062
- Space Cadet #2B2D42 ΔE 0.062
- Dark Purple #35063E ΔE 0.066
- Royal Purple #4B006E ΔE 0.071
- Deep Purple #36013F ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.072
Use #381F55 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.