#512C77
Closest named color: Dark Slate Blue (#483D8B). oklch(38% 0.125 303.7), rgb(81, 44, 119).
Aa
White text reads best on this color (10.62:1).
About this color
#512C77 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.125 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 10.62:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.97:1 |
| White text | 10.62:1 |
Values
| HEX | #512C77 |
| RGB | rgb(81, 44, 119) |
| HSL | hsl(270, 46%, 32%) |
| OKLCH | oklch(38% 0.125 303.7) |
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 #512C77 | 10.62:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #512C77 | 1.97:1 | Fails | Lc 9.7 | Not readable |
| #512C77 text on white | 10.62:1 | AAA | Lc 94.2 | Preferred for body text |
| #512C77 text on black | 1.97:1 | Fails | Lc -8.3 | 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 900.
-
Step 50
50
#F7F4FD
oklch(97.2% 0.012 301.3)
-
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
#B587EC
oklch(70.8% 0.15 303.8)
-
Step 500
500
#A364E6
oklch(63% 0.192 303.7)
-
Step 600
600
#8F47D4
oklch(55.7% 0.208 303.8)
-
Step 700
700
#7937B7
oklch(49.1% 0.193 303.6)
-
Step 800
800
#632F94
oklch(42.7% 0.159 304)
-
Step 900
900 (this color)
#512C77
oklch(38% 0.125 303.7)
-
Step 950
950
#2F1A45
oklch(26.9% 0.079 304.1)
#512C77 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) | #043E79 | 0.101 |
| Deuteranopia (no green cones) | #193E75 | 0.091 |
| Tritanopia (no blue cones) | #4A3B4D | 0.091 |
| Achromatopsia (no color) | #3E3E3E | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512C77
#512C77
oklch(38% 0.125 303.7)
- #384A00
#384A00
oklch(38% 0.094 124)
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 #512C77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Indigo #4B0082 ΔE 0.068
- Rebecca Purple #663399 ΔE 0.070
- Blueberry #464196 ΔE 0.070
- Royal Purple #4B006E ΔE 0.072
- Grape Purple #5D1451 ΔE 0.079
- Plum Purple #4E0550 ΔE 0.093
- Imperial Purple #480CA8 ΔE 0.095
Use #512C77 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.