#512F8F
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.151 295), rgb(81, 47, 143).
Aa
White text reads best on this color (9.75:1).
About this color
#512F8F is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.151 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 9.75:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.75:1 |
Values
| HEX | #512F8F |
| RGB | rgb(81, 47, 143) |
| HSL | hsl(261, 51%, 37%) |
| OKLCH | oklch(40.3% 0.151 295) |
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 #512F8F | 9.75:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #512F8F | 2.15:1 | Fails | Lc 11.8 | Not readable |
| #512F8F text on white | 9.75:1 | AAA | Lc 92.1 | Preferred for body text |
| #512F8F text on black | 2.15:1 | Fails | Lc -10.3 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DBD3F7
oklch(88.5% 0.05 295.5)
-
Step 300
300
#C4B6F4
oklch(80.9% 0.088 294.7)
-
Step 400
400
#A78DEE
oklch(70.6% 0.14 294.9)
-
Step 500
500
#936DE9
oklch(63% 0.18 294.8)
-
Step 600
600
#7F51D7
oklch(55.6% 0.196 295)
-
Step 700
700
#6C41BA
oklch(49.2% 0.181 295.3)
-
Step 800
800 (this color)
#512F8F
oklch(40.3% 0.151 295)
-
Step 900
900
#483078
oklch(37.7% 0.118 295.5)
-
Step 950
950
#2A1D46
oklch(27% 0.074 295.6)
#512F8F 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) | #004592 | 0.096 |
| Deuteranopia (no green cones) | #00428D | 0.096 |
| Tritanopia (no blue cones) | #40465B | 0.118 |
| Achromatopsia (no color) | #444444 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512F8F
#512F8F
oklch(40.3% 0.151 295)
- #474E00
#474E00
oklch(40.4% 0.092 115.5)
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 #512F8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.045
- Rebecca Purple #663399 ΔE 0.045
- Chrysanthemum #560BAD ΔE 0.065
- Imperial Purple #480CA8 ΔE 0.066
- Indigo #4B0082 ΔE 0.072
- Indigo Blue #3A18B1 ΔE 0.082
- Sapphire #2138AB ΔE 0.086
Use #512F8F 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.