#504C70
Closest named color: Dusk (#4E5481). oklch(43.6% 0.059 288.8), rgb(80, 76, 112).
Aa
White text reads best on this color (8.04:1).
About this color
#504C70 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.059 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.032 away. White text reads best on it, at 8.04:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.60:1 |
| White text | 8.04:1 |
Values
| HEX | #504C70 |
| RGB | rgb(80, 76, 112) |
| HSL | hsl(247, 19%, 37%) |
| OKLCH | oklch(43.6% 0.059 288.8) |
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 #504C70 | 8.04:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #504C70 | 2.60:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #504C70 text on white | 8.04:1 | AAA | Lc 87.9 | Fine for body text |
| #504C70 text on black | 2.60:1 | Fails | Lc -14.3 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D8D7E5
oklch(88.4% 0.019 289.3)
-
Step 300
300
#BFBDD6
oklch(80.8% 0.035 289.3)
-
Step 400
400
#9F9CC1
oklch(70.8% 0.054 288.7)
-
Step 500
500
#8883B2
oklch(63.2% 0.07 289.1)
-
Step 600
600
#716C9E
oklch(55.6% 0.077 288.2)
-
Step 700
700
#5F5A87
oklch(49.1% 0.071 288.6)
-
Step 800
800 (this color)
#504C70
oklch(43.6% 0.059 288.8)
-
Step 900
900
#403E59
oklch(37.8% 0.046 287.4)
-
Step 950
950
#262434
oklch(27% 0.03 290)
#504C70 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) | #425171 | 0.024 |
| Deuteranopia (no green cones) | #424F6F | 0.022 |
| Tritanopia (no blue cones) | #495259 | 0.049 |
| Achromatopsia (no color) | #505050 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504C70
#504C70
oklch(43.6% 0.059 288.8)
- #54542C
#54542C
oklch(43.6% 0.059 108.6)
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 #504C70, 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 0.033
- YInMn Blue #415A77 ΔE 0.043
- Twilight #4E518B ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.065
- Dusk Blue #26538D ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.069
Use #504C70 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.