#504E79
Closest named color: Dusk (#4E5481). oklch(44.5% 0.07 285.3), rgb(80, 78, 121).
Aa
White text reads best on this color (7.75:1).
About this color
#504E79 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.070 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.019 away. White text reads best on it, at 7.75:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #504E79 |
| RGB | rgb(80, 78, 121) |
| HSL | hsl(243, 22%, 39%) |
| OKLCH | oklch(44.5% 0.07 285.3) |
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 #504E79 | 7.75:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #504E79 | 2.70:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #504E79 text on white | 7.75:1 | AAA | Lc 86.9 | Fine for body text |
| #504E79 text on black | 2.70:1 | Fails | Lc -15.2 | 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 800.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D7D7E8
oklch(88.4% 0.023 285.9)
-
Step 300
300
#BDBDDB
oklch(80.8% 0.042 285.4)
-
Step 400
400
#9C9BC8
oklch(70.6% 0.065 285.6)
-
Step 500
500
#8482BA
oklch(63% 0.084 285.4)
-
Step 600
600
#6E6BA6
oklch(55.5% 0.091 285.4)
-
Step 700
700
#5C598F
oklch(49.1% 0.085 285.3)
-
Step 800
800 (this color)
#504E79
oklch(44.5% 0.07 285.3)
-
Step 900
900
#3F3D5D
oklch(37.6% 0.054 286.3)
-
Step 950
950
#252437
oklch(27% 0.035 286.2)
#504E79 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) | #41547B | 0.026 |
| Deuteranopia (no green cones) | #405178 | 0.024 |
| Tritanopia (no blue cones) | #46565E | 0.060 |
| Achromatopsia (no color) | #525252 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504E79
#504E79
oklch(44.5% 0.07 285.3)
- #595624
#595624
oklch(44.4% 0.07 105.8)
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 #504E79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.019
- Twilight #4E518B ΔE 0.029
- Dusty Grape #545775 ΔE 0.031
- YInMn Blue #415A77 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.053
- Dusky Blue #475F94 ΔE 0.058
- Dusk Blue #26538D ΔE 0.058
Use #504E79 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.