#504F81
Closest named color: Dusk (#4E5481). oklch(45.1% 0.081 283.6), rgb(80, 79, 129).
Aa
White text reads best on this color (7.56:1).
About this color
#504F81 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.081 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.015 away. White text reads best on it, at 7.56:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.77:1 |
| White text | 7.56:1 |
Values
| HEX | #504F81 |
| RGB | rgb(80, 79, 129) |
| HSL | hsl(241, 24%, 41%) |
| OKLCH | oklch(45.1% 0.081 283.6) |
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 #504F81 | 7.56:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #504F81 | 2.77:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #504F81 text on white | 7.56:1 | AAA | Lc 86.2 | Fine for body text |
| #504F81 text on black | 2.77:1 | Fails | Lc -15.8 | 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
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D7EA
oklch(88.4% 0.026 283.4)
-
Step 300
300
#BCBDDF
oklch(80.9% 0.048 283.9)
-
Step 400
400
#9A9BCF
oklch(70.8% 0.076 283.4)
-
Step 500
500
#8281C2
oklch(63% 0.097 284)
-
Step 600
600
#6C6AAF
oklch(55.6% 0.106 283.7)
-
Step 700
700
#5A5896
oklch(49.1% 0.098 283.6)
-
Step 800
800 (this color)
#504F81
oklch(45.1% 0.081 283.6)
-
Step 900
900
#3D3D62
oklch(37.7% 0.063 283)
-
Step 950
950
#242439
oklch(27.1% 0.039 283.5)
#504F81 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) | #3F5683 | 0.029 |
| Deuteranopia (no green cones) | #3D5380 | 0.028 |
| Tritanopia (no blue cones) | #435962 | 0.070 |
| Achromatopsia (no color) | #545454 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504F81
#504F81
oklch(45.1% 0.081 283.6)
- #5E571A
#5E571A
oklch(45.1% 0.08 102.7)
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 #504F81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.015
- Twilight #4E518B ΔE 0.016
- Dusty Grape #545775 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.049
- Dusky Blue #475F94 ΔE 0.049
- Dusk Blue #26538D ΔE 0.053
Use #504F81 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.