#504D73
Closest named color: Dusk (#4E5481). oklch(43.9% 0.062 287.2), rgb(80, 77, 115).
Aa
White text reads best on this color (7.92:1).
About this color
#504D73 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.062 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.027 away. White text reads best on it, at 7.92:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.65:1 |
| White text | 7.92:1 |
Values
| HEX | #504D73 |
| RGB | rgb(80, 77, 115) |
| HSL | hsl(245, 20%, 38%) |
| OKLCH | oklch(43.9% 0.062 287.2) |
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 #504D73 | 7.92:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #504D73 | 2.65:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #504D73 text on white | 7.92:1 | AAA | Lc 87.5 | Fine for body text |
| #504D73 text on black | 2.65:1 | Fails | Lc -14.7 | 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 800.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F1
oklch(93.6% 0.011 286.2)
-
Step 200
200
#D8D7E6
oklch(88.4% 0.02 289)
-
Step 300
300
#BEBED7
oklch(80.9% 0.035 285.6)
-
Step 400
400
#9E9CC4
oklch(70.8% 0.058 287.1)
-
Step 500
500
#8683B4
oklch(63.1% 0.073 286.9)
-
Step 600
600
#706CA0
oklch(55.6% 0.08 287)
-
Step 700
700
#5E5A89
oklch(49.1% 0.074 287.2)
-
Step 800
800 (this color)
#504D73
oklch(43.9% 0.062 287.2)
-
Step 900
900
#403E5A
oklch(37.8% 0.047 287.2)
-
Step 950
950
#252435
oklch(26.9% 0.031 286.8)
#504D73 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) | #425275 | 0.024 |
| Deuteranopia (no green cones) | #425072 | 0.022 |
| Tritanopia (no blue cones) | #48545B | 0.053 |
| Achromatopsia (no color) | #515151 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504D73
#504D73
oklch(43.9% 0.062 287.2)
- #56552A
#56552A
oklch(44% 0.063 107.5)
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 #504D73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.027
- Dusty Grape #545775 ΔE 0.031
- Twilight #4E518B ΔE 0.039
- YInMn Blue #415A77 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.060
- Dusk Blue #26538D ΔE 0.064
- Dusky Blue #475F94 ΔE 0.065
Use #504D73 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.