#505381
Closest named color: Dusk (#4E5481). oklch(46% 0.075 280.2), rgb(80, 83, 129).
Aa
White text reads best on this color (7.25:1).
About this color
#505381 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.075 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.004 away. White text reads best on it, at 7.25:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #505381 |
| RGB | rgb(80, 83, 129) |
| HSL | hsl(236, 23%, 41%) |
| OKLCH | oklch(46% 0.075 280.2) |
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 #505381 | 7.25:1 | AAA | Lc -90.0 | Preferred for body text |
| Black text on #505381 | 2.89:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #505381 text on white | 7.25:1 | AAA | Lc 85.1 | Fine for body text |
| #505381 text on black | 2.89:1 | Fails | Lc -16.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E7
oklch(88.5% 0.021 279.9)
-
Step 300
300
#BCBFD8
oklch(81% 0.035 280.2)
-
Step 400
400
#999DC5
oklch(70.7% 0.058 280.3)
-
Step 500
500
#8085B6
oklch(63.1% 0.074 279.5)
-
Step 600
600
#6A6EA2
oklch(55.6% 0.081 280)
-
Step 700
700 (this color)
#505381
oklch(46% 0.075 280.2)
-
Step 800
800
#484B70
oklch(42.6% 0.061 279.9)
-
Step 900
900
#3C3F5B
oklch(37.7% 0.048 279.1)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#505381 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) | #445983 | 0.022 |
| Deuteranopia (no green cones) | #425580 | 0.020 |
| Tritanopia (no blue cones) | #425C64 | 0.066 |
| Achromatopsia (no color) | #575757 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #505381
#505381
oklch(46% 0.075 280.2)
- #625923
#625923
oklch(46.1% 0.074 99.9)
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 #505381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.004
- Twilight #4E518B ΔE 0.019
- Dusty Grape #545775 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.044
- Denim #3B638C ΔE 0.049
Use #505381 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.