#512D77
Closest named color: Dark Slate Blue (#483D8B). oklch(38.1% 0.123 303.5), rgb(81, 45, 119).
Aa
White text reads best on this color (10.54:1).
About this color
#512D77 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.123 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 10.54:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.99:1 |
| White text | 10.54:1 |
Values
| HEX | #512D77 |
| RGB | rgb(81, 45, 119) |
| HSL | hsl(269, 45%, 32%) |
| OKLCH | oklch(38.1% 0.123 303.5) |
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 #512D77 | 10.54:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #512D77 | 1.99:1 | Fails | Lc 9.8 | Not readable |
| #512D77 text on white | 10.54:1 | AAA | Lc 94.1 | Preferred for body text |
| #512D77 text on black | 1.99:1 | Fails | Lc -8.5 | 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
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#E0D1F6
oklch(88.4% 0.053 303.7)
-
Step 300
300
#CDB2F2
oklch(80.9% 0.093 303.7)
-
Step 400
400
#B487EB
oklch(70.6% 0.148 303.6)
-
Step 500
500
#A265E5
oklch(63% 0.19 303.4)
-
Step 600
600
#8E48D3
oklch(55.6% 0.205 303.5)
-
Step 700
700
#7938B7
oklch(49.2% 0.191 303.5)
-
Step 800
800
#623094
oklch(42.8% 0.158 303.3)
-
Step 900
900 (this color)
#512D77
oklch(38.1% 0.123 303.5)
-
Step 950
950
#2F1B45
oklch(27.1% 0.077 303.7)
#512D77 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) | #083E79 | 0.098 |
| Deuteranopia (no green cones) | #1B3F75 | 0.089 |
| Tritanopia (no blue cones) | #4A3C4D | 0.091 |
| Achromatopsia (no color) | #3F3F3F | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512D77
#512D77
oklch(38.1% 0.123 303.5)
- #394A00
#394A00
oklch(38.1% 0.094 123.3)
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 #512D77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Blueberry #464196 ΔE 0.069
- Rebecca Purple #663399 ΔE 0.070
- Indigo #4B0082 ΔE 0.070
- Royal Purple #4B006E ΔE 0.075
- Grape Purple #5D1451 ΔE 0.080
- Plum Purple #4E0550 ΔE 0.095
- Twilight #4E518B ΔE 0.095
Use #512D77 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.