#504C7D
Closest named color: Dusk (#4E5481). oklch(44.3% 0.079 286.4), rgb(80, 76, 125).
Aa
White text reads best on this color (7.86:1).
About this color
#504C7D is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.079 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.022 away. White text reads best on it, at 7.86:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.67:1 |
| White text | 7.86:1 |
Values
| HEX | #504C7D |
| RGB | rgb(80, 76, 125) |
| HSL | hsl(245, 24%, 39%) |
| OKLCH | oklch(44.3% 0.079 286.4) |
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 #504C7D | 7.86:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #504C7D | 2.67:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #504C7D text on white | 7.86:1 | AAA | Lc 87.2 | Fine for body text |
| #504C7D text on black | 2.67:1 | Fails | Lc -14.9 | 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
#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
#BEBDDE
oklch(81% 0.046 286.7)
-
Step 400
400
#9C9ACD
oklch(70.6% 0.074 286.1)
-
Step 500
500
#8581C0
oklch(63.2% 0.094 286.3)
-
Step 600
600
#6F69AD
oklch(55.6% 0.104 286.5)
-
Step 700
700
#5D5794
oklch(49% 0.096 286.8)
-
Step 800
800 (this color)
#504C7D
oklch(44.3% 0.079 286.4)
-
Step 900
900
#3F3C61
oklch(37.6% 0.063 286.7)
-
Step 950
950
#252339
oklch(26.9% 0.041 287.5)
#504C7D 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) | #3D537F | 0.032 |
| Deuteranopia (no green cones) | #3C507C | 0.030 |
| Tritanopia (no blue cones) | #44555E | 0.068 |
| Achromatopsia (no color) | #525252 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504C7D
#504C7D
oklch(44.3% 0.079 286.4)
- #59561A
#59561A
oklch(44.3% 0.08 106.5)
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 #504C7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.022
- Twilight #4E518B ΔE 0.024
- Dusty Grape #545775 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.054
- Dusk Blue #26538D ΔE 0.056
Use #504C7D 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.