#504F77
Closest named color: Dusk (#4E5481). oklch(44.6% 0.065 284.6), rgb(80, 79, 119).
Aa
White text reads best on this color (7.70:1).
About this color
#504F77 is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.065 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 7.70:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.72:1 |
| White text | 7.70:1 |
Values
| HEX | #504F77 |
| RGB | rgb(80, 79, 119) |
| HSL | hsl(242, 20%, 39%) |
| OKLCH | oklch(44.6% 0.065 284.6) |
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 #504F77 | 7.70:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #504F77 | 2.72:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #504F77 text on white | 7.70:1 | AAA | Lc 86.7 | Fine for body text |
| #504F77 text on black | 2.72:1 | Fails | Lc -15.4 | 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
#E9E9F1
oklch(93.6% 0.011 286.2)
-
Step 200
200
#D7D8E7
oklch(88.6% 0.02 282.9)
-
Step 300
300
#BDBED9
oklch(80.9% 0.038 283.8)
-
Step 400
400
#9C9CC6
oklch(70.8% 0.061 284.7)
-
Step 500
500
#8483B7
oklch(63.1% 0.078 284.8)
-
Step 600
600
#6E6CA3
oklch(55.6% 0.085 285)
-
Step 700
700
#5C5A8C
oklch(49.1% 0.079 284.9)
-
Step 800
800 (this color)
#504F77
oklch(44.6% 0.065 284.6)
-
Step 900
900
#3E3E5C
oklch(37.7% 0.051 283.7)
-
Step 950
950
#252436
oklch(27% 0.033 286.5)
#504F77 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) | #435479 | 0.022 |
| Deuteranopia (no green cones) | #425276 | 0.022 |
| Tritanopia (no blue cones) | #46565D | 0.057 |
| Achromatopsia (no color) | #535353 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504F77
#504F77
oklch(44.6% 0.065 284.6)
- #5A5629
#5A5629
oklch(44.6% 0.065 104.1)
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 #504F77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.019
- Dusty Grape #545775 ΔE 0.026
- Twilight #4E518B ΔE 0.032
- YInMn Blue #415A77 ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.058
- Dusk Blue #26538D ΔE 0.060
Use #504F77 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.