#512F74
Closest named color: Dark Slate Blue (#483D8B). oklch(38.2% 0.116 304.2), rgb(81, 47, 116).
Aa
White text reads best on this color (10.45:1).
About this color
#512F74 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.116 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 0.050 away. White text reads best on it, at 10.45:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.45:1 |
Values
| HEX | #512F74 |
| RGB | rgb(81, 47, 116) |
| HSL | hsl(270, 42%, 32%) |
| OKLCH | oklch(38.2% 0.116 304.2) |
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 #512F74 | 10.45:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #512F74 | 2.00:1 | Fails | Lc 10.0 | Not readable |
| #512F74 text on white | 10.45:1 | AAA | Lc 93.9 | Preferred for body text |
| #512F74 text on black | 2.00:1 | Fails | Lc -8.6 | 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
#EDE6F8
oklch(93.6% 0.025 303.5)
-
Step 200
200
#E0D2F4
oklch(88.6% 0.048 304.1)
-
Step 300
300
#CDB3EF
oklch(80.9% 0.087 304.3)
-
Step 400
400
#B489E6
oklch(70.7% 0.139 304.4)
-
Step 500
500
#A268DF
oklch(63.1% 0.178 304.3)
-
Step 600
600
#8D4CCD
oklch(55.6% 0.193 303.9)
-
Step 700
700
#783CB1
oklch(49.1% 0.179 304.1)
-
Step 800
800
#62328F
oklch(42.7% 0.149 304.6)
-
Step 900
900 (this color)
#512F74
oklch(38.2% 0.116 304.2)
-
Step 950
950
#2F1B43
oklch(27% 0.074 305)
#512F74 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) | #133F76 | 0.092 |
| Deuteranopia (no green cones) | #213F72 | 0.082 |
| Tritanopia (no blue cones) | #4B3C4C | 0.086 |
| Achromatopsia (no color) | #3F3F3F | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512F74
#512F74
oklch(38.2% 0.116 304.2)
- #384B00
#384B00
oklch(38.3% 0.096 124.5)
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 #512F74, 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 0.070
- Rebecca Purple #663399 ΔE 0.073
- Indigo #4B0082 ΔE 0.077
- Grape Purple #5D1451 ΔE 0.078
- Royal Purple #4B006E ΔE 0.079
- Twilight #4E518B ΔE 0.092
- Plum Purple #4E0550 ΔE 0.095
Use #512F74 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.