#512D71
Closest named color: Dark Slate Blue (#483D8B). oklch(37.7% 0.115 306), rgb(81, 45, 113).
Aa
White text reads best on this color (10.69:1).
About this color
#512D71 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.115 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.057 away. White text reads best on it, at 10.69:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.96:1 |
| White text | 10.69:1 |
Values
| HEX | #512D71 |
| RGB | rgb(81, 45, 113) |
| HSL | hsl(272, 43%, 31%) |
| OKLCH | oklch(37.7% 0.115 306) |
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 #512D71 | 10.69:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #512D71 | 1.96:1 | Fails | Lc 9.5 | Not readable |
| #512D71 text on white | 10.69:1 | AAA | Lc 94.5 | Preferred for body text |
| #512D71 text on black | 1.96:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EEE6F8
oklch(93.6% 0.025 305.8)
-
Step 200
200
#E1D2F3
oklch(88.6% 0.047 305.9)
-
Step 300
300
#CEB3ED
oklch(80.9% 0.085 305.8)
-
Step 400
400
#B688E4
oklch(70.6% 0.138 306.2)
-
Step 500
500
#A467DD
oklch(63.1% 0.178 305.8)
-
Step 600
600
#904BCA
oklch(55.6% 0.192 306.1)
-
Step 700
700
#7A3BAF
oklch(49.1% 0.179 305.7)
-
Step 800
800
#64328D
oklch(42.8% 0.147 306.4)
-
Step 900
900 (this color)
#512D71
oklch(37.7% 0.115 306)
-
Step 950
950
#2F1B42
oklch(26.9% 0.073 305.8)
#512D71 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) | #133D73 | 0.094 |
| Deuteranopia (no green cones) | #213E6F | 0.084 |
| Tritanopia (no blue cones) | #4C3A4A | 0.084 |
| Achromatopsia (no color) | #3E3E3E | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512D71
#512D71
oklch(37.7% 0.115 306)
- #354A00
#354A00
oklch(37.7% 0.096 125.9)
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 #512D71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.057
- Grape Purple #5D1451 ΔE 0.072
- Royal Purple #4B006E ΔE 0.074
- Indigo #4B0082 ΔE 0.075
- Blueberry #464196 ΔE 0.076
- Rebecca Purple #663399 ΔE 0.078
- Plum Purple #4E0550 ΔE 0.089
- Rich Purple #720058 ΔE 0.094
Use #512D71 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.