#503166
Closest named color: Dark Slate Blue (#483D8B). oklch(37.5% 0.094 309.6), rgb(80, 49, 102).
Aa
White text reads best on this color (10.64:1).
About this color
#503166 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.094 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.067 away. White text reads best on it, at 10.64:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.97:1 |
| White text | 10.64:1 |
Values
| HEX | #503166 |
| RGB | rgb(80, 49, 102) |
| HSL | hsl(275, 35%, 30%) |
| OKLCH | oklch(37.5% 0.094 309.6) |
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 #503166 | 10.64:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #503166 | 1.97:1 | Fails | Lc 9.4 | Not readable |
| #503166 text on white | 10.64:1 | AAA | Lc 94.5 | Preferred for body text |
| #503166 text on black | 1.97:1 | Fails | Lc -8.1 | 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 900.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F4
oklch(93.5% 0.021 311.1)
-
Step 200
200
#E1D3ED
oklch(88.6% 0.038 309.6)
-
Step 300
300
#CEB5E3
oklch(80.9% 0.069 309.4)
-
Step 400
400
#B68DD5
oklch(70.8% 0.111 309.8)
-
Step 500
500
#A36ECA
oklch(63% 0.144 309.4)
-
Step 600
600
#8F54B7
oklch(55.6% 0.157 309.7)
-
Step 700
700
#79449D
oklch(49% 0.145 309.6)
-
Step 800
800
#633980
oklch(42.8% 0.12 309.6)
-
Step 900
900 (this color)
#503166
oklch(37.5% 0.094 309.6)
-
Step 950
950
#2F1D3C
oklch(26.9% 0.06 309.7)
#503166 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) | #243D68 | 0.074 |
| Deuteranopia (no green cones) | #2C3F65 | 0.068 |
| Tritanopia (no blue cones) | #4D3A46 | 0.068 |
| Achromatopsia (no color) | #3E3E3E | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503166
#503166
oklch(37.5% 0.094 309.6)
- #314A09
#314A09
oklch(37.5% 0.093 129.2)
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 #503166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.067
- Grape Purple #5D1451 ΔE 0.068
- Blueberry #464196 ΔE 0.086
- Royal Purple #4B006E ΔE 0.088
- Dark Grey Blue #29465B ΔE 0.089
- Prussian Blue #1D3557 ΔE 0.089
- Plum Purple #4E0550 ΔE 0.089
- Purple Brown #673A3F ΔE 0.092
Use #503166 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.