#504EA4
Closest named color: Twilight (#4E518B). oklch(47.2% 0.135 280.9), rgb(80, 78, 164).
Aa
White text reads best on this color (7.07:1).
About this color
#504EA4 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.135 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.043 away. White text reads best on it, at 7.07:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #504EA4 |
| RGB | rgb(80, 78, 164) |
| HSL | hsl(241, 36%, 47%) |
| OKLCH | oklch(47.2% 0.135 280.9) |
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 #504EA4 | 7.07:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #504EA4 | 2.96:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #504EA4 text on white | 7.07:1 | AAA | Lc 84.3 | Fine for body text |
| #504EA4 text on black | 2.96:1 | Fails | Lc -17.7 | 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 700.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F1
oklch(88.5% 0.036 280.4)
-
Step 300
300
#B8BCEB
oklch(80.8% 0.066 281)
-
Step 400
400
#9599E0
oklch(70.7% 0.103 280.9)
-
Step 500
500
#7C7ED8
oklch(63.1% 0.134 280.9)
-
Step 600
600
#6665C5
oklch(55.5% 0.145 281)
-
Step 700
700 (this color)
#504EA4
oklch(47.2% 0.135 280.9)
-
Step 800
800
#45458A
oklch(42.7% 0.112 280.6)
-
Step 900
900
#3A3B6E
oklch(37.8% 0.086 280.6)
-
Step 950
950
#222341
oklch(27.1% 0.055 280.6)
#504EA4 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) | #225CA7 | 0.057 |
| Deuteranopia (no green cones) | #1A55A2 | 0.059 |
| Tritanopia (no blue cones) | #2F6171 | 0.117 |
| Achromatopsia (no color) | #585858 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504EA4
#504EA4
oklch(47.2% 0.135 280.9)
- #685C00
#685C00
oklch(47.2% 0.098 100.5)
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 #504EA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.043
- Blueberry #464196 ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.055
- Dusky Blue #475F94 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.059
- Iris #6258C4 ΔE 0.063
- Dusk #4E5481 ΔE 0.063
- Dusk Blue #26538D ΔE 0.066
Use #504EA4 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.