#504D7F
Closest named color: Dusk (#4E5481). oklch(44.6% 0.081 285.4), rgb(80, 77, 127).
Aa
White text reads best on this color (7.75:1).
About this color
#504D7F is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.081 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.020 away. White text reads best on it, at 7.75:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #504D7F |
| RGB | rgb(80, 77, 127) |
| HSL | hsl(244, 25%, 40%) |
| OKLCH | oklch(44.6% 0.081 285.4) |
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 #504D7F | 7.75:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #504D7F | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #504D7F text on white | 7.75:1 | AAA | Lc 86.9 | Fine for body text |
| #504D7F 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E9F3
oklch(93.7% 0.013 286.1)
-
Step 200
200
#D7D7EA
oklch(88.5% 0.026 285.9)
-
Step 300
300
#BDBDDF
oklch(80.9% 0.048 285.3)
-
Step 400
400
#9B9ACE
oklch(70.6% 0.076 285.2)
-
Step 500
500
#8481C2
oklch(63.2% 0.097 285.4)
-
Step 600
600
#6E69AE
oklch(55.6% 0.106 285.7)
-
Step 700
700
#5C5896
oklch(49.2% 0.098 285.2)
-
Step 800
800 (this color)
#504D7F
oklch(44.6% 0.081 285.4)
-
Step 900
900
#3E3C62
oklch(37.6% 0.064 285.3)
-
Step 950
950
#242439
oklch(27.1% 0.039 283.5)
#504D7F 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) | #3D5481 | 0.031 |
| Deuteranopia (no green cones) | #3C517E | 0.030 |
| Tritanopia (no blue cones) | #445660 | 0.068 |
| Achromatopsia (no color) | #535353 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504D7F
#504D7F
oklch(44.6% 0.081 285.4)
- #5B5619
#5B5619
oklch(44.5% 0.08 104.6)
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 #504D7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.020
- Twilight #4E518B ΔE 0.021
- Dusty Grape #545775 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
Use #504D7F 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.