#504BA3
Closest named color: Blueberry (#464196). oklch(46.5% 0.138 282.2), rgb(80, 75, 163).
Aa
White text reads best on this color (7.30:1).
About this color
#504BA3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.138 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.037 away. White text reads best on it, at 7.30:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #504BA3 |
| RGB | rgb(80, 75, 163) |
| HSL | hsl(243, 37%, 47%) |
| OKLCH | oklch(46.5% 0.138 282.2) |
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 #504BA3 | 7.30:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #504BA3 | 2.87:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #504BA3 text on white | 7.30:1 | AAA | Lc 85.1 | Fine for body text |
| #504BA3 text on black | 2.87:1 | Fails | Lc -16.9 | 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
#D5D7F2
oklch(88.6% 0.037 282.2)
-
Step 300
300
#B9BCEB
oklch(80.9% 0.066 281.9)
-
Step 400
400
#9698E1
oklch(70.7% 0.106 282.1)
-
Step 500
500
#7E7DD9
oklch(63.1% 0.136 282.3)
-
Step 600
600
#6864C6
oklch(55.5% 0.148 282.3)
-
Step 700
700 (this color)
#504BA3
oklch(46.5% 0.138 282.2)
-
Step 800
800
#47448B
oklch(42.7% 0.114 282.3)
-
Step 900
900
#3B3A6F
oklch(37.7% 0.089 282.1)
-
Step 950
950
#222241
oklch(26.9% 0.057 281.9)
#504BA3 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) | #1B59A6 | 0.062 |
| Deuteranopia (no green cones) | #1353A1 | 0.064 |
| Tritanopia (no blue cones) | #305F6F | 0.120 |
| Achromatopsia (no color) | #565656 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504BA3
#504BA3
oklch(46.5% 0.138 282.2)
- #655B00
#655B00
oklch(46.6% 0.098 102)
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 #504BA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.037
- Twilight #4E518B ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.060
- Dusky Blue #475F94 ΔE 0.064
- Rebecca Purple #663399 ΔE 0.064
- Dusk #4E5481 ΔE 0.065
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
Use #504BA3 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.