#504E8B
Closest named color: Twilight (#4E518B). oklch(45.5% 0.098 283.3), rgb(80, 78, 139).
Aa
White text reads best on this color (7.49:1).
About this color
#504E8B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.098 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.009 away. White text reads best on it, at 7.49:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #504E8B |
| RGB | rgb(80, 78, 139) |
| HSL | hsl(242, 28%, 43%) |
| OKLCH | oklch(45.5% 0.098 283.3) |
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 #504E8B | 7.49:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #504E8B | 2.80:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #504E8B text on white | 7.49:1 | AAA | Lc 85.9 | Fine for body text |
| #504E8B text on black | 2.80:1 | Fails | Lc -16.1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D6D7EE
oklch(88.5% 0.031 283.8)
-
Step 300
300
#BBBCE5
oklch(80.8% 0.058 283.9)
-
Step 400
400
#9999D8
oklch(70.7% 0.092 283.8)
-
Step 500
500
#807FCE
oklch(63.1% 0.117 283.1)
-
Step 600
600
#6A67BB
oklch(55.6% 0.128 283)
-
Step 700
700
#5955A1
oklch(49.1% 0.119 283.5)
-
Step 800
800 (this color)
#504E8B
oklch(45.5% 0.098 283.3)
-
Step 900
900
#3C3B69
oklch(37.6% 0.078 283)
-
Step 950
950
#23233D
oklch(27% 0.048 282.7)
#504E8B 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) | #38578D | 0.038 |
| Deuteranopia (no green cones) | #35538A | 0.038 |
| Tritanopia (no blue cones) | #3E5A66 | 0.083 |
| Achromatopsia (no color) | #555555 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504E8B
#504E8B
oklch(45.5% 0.098 283.3)
- #615800
#615800
oklch(45.5% 0.095 102.6)
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 #504E8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.009
- Dusk #4E5481 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.042
- Blueberry #464196 ΔE 0.046
- Dusky Blue #475F94 ΔE 0.047
- Dark Slate Blue #483D8B ΔE 0.049
- Dusty Grape #545775 ΔE 0.051
- Dusk Blue #26538D ΔE 0.052
Use #504E8B 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.