#503B9E
Closest named color: Blueberry (#464196). oklch(43.3% 0.153 288), rgb(80, 59, 158).
Aa
White text reads best on this color (8.53:1).
About this color
#503B9E is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.153 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.025 away. White text reads best on it, at 8.53:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.46:1 |
| White text | 8.53:1 |
Values
| HEX | #503B9E |
| RGB | rgb(80, 59, 158) |
| HSL | hsl(253, 46%, 43%) |
| OKLCH | oklch(43.3% 0.153 288) |
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 #503B9E | 8.53:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #503B9E | 2.46:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #503B9E text on white | 8.53:1 | AAA | Lc 88.9 | Fine for body text |
| #503B9E text on black | 2.46:1 | Fails | Lc -13.3 | Not readable |
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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E8E8FB
oklch(93.7% 0.026 285.9)
-
Step 200
200
#D7D5F9
oklch(88.6% 0.049 287.9)
-
Step 300
300
#BDB8F8
oklch(80.9% 0.09 287.8)
-
Step 400
400
#9D90F4
oklch(70.6% 0.144 288.1)
-
Step 500
500
#8771F0
oklch(63.1% 0.183 287.9)
-
Step 600
600
#7355DE
oklch(55.6% 0.199 288.2)
-
Step 700
700
#6144C1
oklch(49.1% 0.186 288.3)
-
Step 800
800 (this color)
#503B9E
oklch(43.3% 0.153 288)
-
Step 900
900
#41337C
oklch(37.8% 0.119 288.2)
-
Step 950
950
#261E49
oklch(27% 0.077 288.7)
#503B9E 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) | #004FA1 | 0.084 |
| Deuteranopia (no green cones) | #004A9C | 0.082 |
| Tritanopia (no blue cones) | #355267 | 0.125 |
| Achromatopsia (no color) | #4C4C4C | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B9E
#503B9E
oklch(43.3% 0.153 288)
- #565400
#565400
oklch(43.4% 0.094 108.1)
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 #503B9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.025
- Dark Slate Blue #483D8B ΔE 0.034
- Rebecca Purple #663399 ΔE 0.043
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Twilight #4E518B ΔE 0.068
- Chrysanthemum #560BAD ΔE 0.071
- Sapphire #2138AB ΔE 0.071
- Bluey Purple #6241C7 ΔE 0.073
Use #503B9E 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.