#503B9F
Closest named color: Blueberry (#464196). oklch(43.4% 0.155 287.8), rgb(80, 59, 159).
Aa
White text reads best on this color (8.51:1).
About this color
#503B9F is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.155 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.026 away. White text reads best on it, at 8.51:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.46:1 |
| White text | 8.51:1 |
Values
| HEX | #503B9F |
| RGB | rgb(80, 59, 159) |
| HSL | hsl(253, 46%, 43%) |
| OKLCH | oklch(43.4% 0.155 287.8) |
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 #503B9F | 8.51:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #503B9F | 2.46:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #503B9F text on white | 8.51:1 | AAA | Lc 88.9 | Fine for body text |
| #503B9F 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
#9D90F5
oklch(70.7% 0.145 288)
-
Step 500
500
#8771F1
oklch(63.2% 0.185 287.8)
-
Step 600
600
#7255DF
oklch(55.5% 0.2 287.7)
-
Step 700
700
#6044C2
oklch(49.1% 0.187 287.7)
-
Step 800
800 (this color)
#503B9F
oklch(43.4% 0.155 287.8)
-
Step 900
900
#40337D
oklch(37.8% 0.12 287.2)
-
Step 950
950
#251E49
oklch(26.9% 0.077 287.5)
#503B9F 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) | #004FA2 | 0.084 |
| Deuteranopia (no green cones) | #004A9D | 0.082 |
| Tritanopia (no blue cones) | #355367 | 0.128 |
| Achromatopsia (no color) | #4D4D4D | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B9F
#503B9F
oklch(43.4% 0.155 287.8)
- #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 #503B9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.026
- Dark Slate Blue #483D8B ΔE 0.036
- Rebecca Purple #663399 ΔE 0.044
- Blue With A Hint Of Purple #533CC6 ΔE 0.063
- Twilight #4E518B ΔE 0.069
- Chrysanthemum #560BAD ΔE 0.071
- Sapphire #2138AB ΔE 0.071
- Blurple #5539CC ΔE 0.072
Use #503B9F 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.