#381B5F
Closest named color: Royal Purple (#4B006E). oklch(30.4% 0.115 298.9), rgb(56, 27, 95).
Aa
White text reads best on this color (14.09:1).
About this color
#381B5F is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.115 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.056 away. White text reads best on it, at 14.09:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.49:1 |
| White text | 14.09:1 |
Values
| HEX | #381B5F |
| RGB | rgb(56, 27, 95) |
| HSL | hsl(266, 56%, 24%) |
| OKLCH | oklch(30.4% 0.115 298.9) |
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 #381B5F | 14.09:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #381B5F | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #381B5F text on white | 14.09:1 | AAA | Lc 100.4 | Preferred for body text |
| #381B5F 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
#EDE5FF
oklch(93.6% 0.036 299.7)
-
Step 200
200
#DED0FF
oklch(88.4% 0.066 298.7)
-
Step 300
300
#CAB1FF
oklch(81% 0.111 298.6)
-
Step 400
400
#B183FF
oklch(70.7% 0.179 298.9)
-
Step 500
500
#A05BFF
oklch(63.1% 0.232 298.9)
-
Step 600
600
#9117FF
oklch(55.6% 0.288 299)
-
Step 700
700
#7B00DC
oklch(49% 0.263 298.9)
-
Step 800
800
#6500B7
oklch(42.7% 0.229 298.8)
-
Step 900
900
#521691
oklch(37.7% 0.181 299)
-
Step 950
950 (this color)
#381B5F
oklch(30.4% 0.115 298.9)
#381B5F 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) | #002B61 | 0.080 |
| Deuteranopia (no green cones) | #002B5E | 0.080 |
| Tritanopia (no blue cones) | #2F2B3A | 0.088 |
| Achromatopsia (no color) | #2B2B2B | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #381B5F
#381B5F
oklch(30.4% 0.115 298.9)
- #2B3300
#2B3300
oklch(30.3% 0.071 118.8)
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 #381B5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.056
- Plum Purple #4E0550 ΔE 0.063
- Deep Violet #490648 ΔE 0.064
- Midnight Blue #191970 ΔE 0.067
- Eggplant Purple #430541 ΔE 0.069
- Dark Indigo #1F0954 ΔE 0.070
- Dark Purple #35063E ΔE 0.072
- Indigo #4B0082 ΔE 0.074
Use #381B5F 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.