#504A71
Closest named color: Dusk (#4E5481). oklch(43.2% 0.064 290.5), rgb(80, 74, 113).
Aa
White text reads best on this color (8.20:1).
About this color
#504A71 is a dark, muted purple. In OKLCH its lightness is 43%, its chroma 0.064 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.034 away. White text reads best on it, at 8.20:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.55:1 |
| White text | 8.20:1 |
Values
| HEX | #504A71 |
| RGB | rgb(80, 74, 113) |
| HSL | hsl(249, 21%, 37%) |
| OKLCH | oklch(43.2% 0.064 290.5) |
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 #504A71 | 8.20:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #504A71 | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #504A71 text on white | 8.20:1 | AAA | Lc 88.3 | Fine for body text |
| #504A71 text on black | 2.55:1 | Fails | Lc -13.8 | 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
#D9D7E6
oklch(88.5% 0.021 292.1)
-
Step 300
300
#C0BDD8
oklch(80.9% 0.038 290.6)
-
Step 400
400
#A09BC4
oklch(70.8% 0.059 290.4)
-
Step 500
500
#8982B5
oklch(63.2% 0.076 290.3)
-
Step 600
600
#736BA1
oklch(55.7% 0.083 290.2)
-
Step 700
700
#605989
oklch(49.1% 0.076 290)
-
Step 800
800 (this color)
#504A71
oklch(43.2% 0.064 290.5)
-
Step 900
900
#413D5A
oklch(37.7% 0.049 290.1)
-
Step 950
950
#262435
oklch(27% 0.031 289.5)
#504A71 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) | #3F5073 | 0.029 |
| Deuteranopia (no green cones) | #404E70 | 0.026 |
| Tritanopia (no blue cones) | #495158 | 0.054 |
| Achromatopsia (no color) | #4F4F4F | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504A71
#504A71
oklch(43.2% 0.064 290.5)
- #525328
#525328
oklch(43.1% 0.063 110)
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 #504A71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.034
- Dusty Grape #545775 ΔE 0.039
- Twilight #4E518B ΔE 0.043
- YInMn Blue #415A77 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.064
- Dusk Blue #26538D ΔE 0.067
- Denim Blue #3B5B92 ΔE 0.067
Use #504A71 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.