#504A73
Closest named color: Dusk (#4E5481). oklch(43.3% 0.067 290), rgb(80, 74, 115).
Aa
White text reads best on this color (8.17:1).
About this color
#504A73 is a dark, muted purple. In OKLCH its lightness is 43%, its chroma 0.067 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.032 away. White text reads best on it, at 8.17:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #504A73 |
| RGB | rgb(80, 74, 115) |
| HSL | hsl(249, 22%, 37%) |
| OKLCH | oklch(43.3% 0.067 290) |
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 #504A73 | 8.17:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #504A73 | 2.56:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #504A73 text on white | 8.17:1 | AAA | Lc 88.2 | Fine for body text |
| #504A73 text on black | 2.56:1 | Fails | Lc -13.9 | 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
#D8D7E7
oklch(88.5% 0.022 288.8)
-
Step 300
300
#C0BDD9
oklch(81% 0.039 290.4)
-
Step 400
400
#9F9AC6
oklch(70.6% 0.064 289.9)
-
Step 500
500
#8881B7
oklch(63% 0.081 289.8)
-
Step 600
600
#736AA3
oklch(55.6% 0.088 290.5)
-
Step 700
700
#60588C
oklch(49% 0.082 290.1)
-
Step 800
800 (this color)
#504A73
oklch(43.3% 0.067 290)
-
Step 900
900
#413D5C
oklch(37.8% 0.053 289.5)
-
Step 950
950
#262436
oklch(27.1% 0.033 289.1)
#504A73 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) | #3F5075 | 0.029 |
| Deuteranopia (no green cones) | #3F4E72 | 0.027 |
| Tritanopia (no blue cones) | #485159 | 0.056 |
| Achromatopsia (no color) | #4F4F4F | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504A73
#504A73
oklch(43.3% 0.067 290)
- #535425
#535425
oklch(43.4% 0.068 110)
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 #504A73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.032
- Dusty Grape #545775 ΔE 0.039
- Twilight #4E518B ΔE 0.040
- YInMn Blue #415A77 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.061
- Light Navy Blue #2E5A88 ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.065
- Dusk Blue #26538D ΔE 0.065
Use #504A73 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.