#504B6F
Closest named color: Dusk (#4E5481). oklch(43.3% 0.059 290.1), rgb(80, 75, 111).
Aa
White text reads best on this color (8.14:1).
About this color
#504B6F is a dark, muted purple. In OKLCH its lightness is 43%, its chroma 0.059 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.034 away. White text reads best on it, at 8.14:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.57:1 |
| White text | 8.14:1 |
Values
| HEX | #504B6F |
| RGB | rgb(80, 75, 111) |
| HSL | hsl(248, 19%, 36%) |
| OKLCH | oklch(43.3% 0.059 290.1) |
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 #504B6F | 8.14:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #504B6F | 2.57:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #504B6F text on white | 8.14:1 | AAA | Lc 88.2 | Fine for body text |
| #504B6F text on black | 2.57:1 | Fails | Lc -14.0 | 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
#C0BDD6
oklch(80.9% 0.035 291.1)
-
Step 400
400
#A09BC1
oklch(70.7% 0.055 290.9)
-
Step 500
500
#8882B2
oklch(63% 0.072 289.9)
-
Step 600
600
#736C9D
oklch(55.7% 0.075 290.3)
-
Step 700
700
#605A87
oklch(49.2% 0.071 289.6)
-
Step 800
800 (this color)
#504B6F
oklch(43.3% 0.059 290.1)
-
Step 900
900
#413D59
oklch(37.6% 0.048 290.5)
-
Step 950
950
#262434
oklch(27% 0.03 290)
#504B6F 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) | #425070 | 0.024 |
| Deuteranopia (no green cones) | #424F6E | 0.024 |
| Tritanopia (no blue cones) | #495158 | 0.049 |
| Achromatopsia (no color) | #4F4F4F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504B6F
#504B6F
oklch(43.3% 0.059 290.1)
- #52542C
#52542C
oklch(43.4% 0.059 111.1)
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 #504B6F, 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 0.036
- Twilight #4E518B ΔE 0.046
- YInMn Blue #415A77 ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.068
- Dusk Blue #26538D ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.069
Use #504B6F 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.