#381B5A
Closest named color: Deep Violet (#490648). oklch(29.9% 0.108 301.2), rgb(56, 27, 90).
Aa
White text reads best on this color (14.26:1).
About this color
#381B5A is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.108 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 0.058 away. White text reads best on it, at 14.26:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.47:1 |
| White text | 14.26:1 |
Values
| HEX | #381B5A |
| RGB | rgb(56, 27, 90) |
| HSL | hsl(268, 54%, 23%) |
| OKLCH | oklch(29.9% 0.108 301.2) |
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 #381B5A | 14.26:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #381B5A | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #381B5A text on white | 14.26:1 | AAA | Lc 100.6 | Preferred for body text |
| #381B5A 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
#EEE5FF
oklch(93.7% 0.036 301.4)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CDAFFF
oklch(80.9% 0.115 301.1)
-
Step 400
400
#B580FF
oklch(70.6% 0.184 301.1)
-
Step 500
500
#A556FF
oklch(63% 0.239 301.2)
-
Step 600
600
#9516FA
oklch(55.6% 0.285 301.2)
-
Step 700
700
#7F00D8
oklch(49.2% 0.261 301.3)
-
Step 800
800
#670BB0
oklch(42.7% 0.22 301.1)
-
Step 900
900
#541A8B
oklch(37.7% 0.171 301.6)
-
Step 950
950 (this color)
#381B5A
oklch(29.9% 0.108 301.2)
#381B5A 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) | #002A5C | 0.081 |
| Deuteranopia (no green cones) | #022A59 | 0.080 |
| Tritanopia (no blue cones) | #312937 | 0.082 |
| Achromatopsia (no color) | #2A2A2A | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #381B5A
#381B5A
oklch(29.9% 0.108 301.2)
- #283300
#283300
oklch(30% 0.073 121.8)
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 #381B5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.058
- Plum Purple #4E0550 ΔE 0.059
- Royal Purple #4B006E ΔE 0.060
- Eggplant Purple #430541 ΔE 0.062
- Dark Purple #35063E ΔE 0.065
- Dark Indigo #1F0954 ΔE 0.069
- Deep Purple #36013F ΔE 0.069
- Midnight Blue #191970 ΔE 0.072
Use #381B5A 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.