#512F7D
Closest named color: Dark Slate Blue (#483D8B). oklch(38.9% 0.128 300.7), rgb(81, 47, 125).
Aa
White text reads best on this color (10.23:1).
About this color
#512F7D is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.128 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.041 away. White text reads best on it, at 10.23:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.05:1 |
| White text | 10.23:1 |
Values
| HEX | #512F7D |
| RGB | rgb(81, 47, 125) |
| HSL | hsl(266, 45%, 34%) |
| OKLCH | oklch(38.9% 0.128 300.7) |
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 #512F7D | 10.23:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #512F7D | 2.05:1 | Fails | Lc 10.6 | Not readable |
| #512F7D text on white | 10.23:1 | AAA | Lc 93.4 | Preferred for body text |
| #512F7D text on black | 2.05:1 | Fails | Lc -9.1 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#DED2F8
oklch(88.5% 0.053 299.7)
-
Step 300
300
#CAB3F5
oklch(80.9% 0.095 300.3)
-
Step 400
400
#B188F0
oklch(70.7% 0.152 300.8)
-
Step 500
500
#9F65EB
oklch(63.1% 0.196 300.9)
-
Step 600
600
#8A47D9
oklch(55.5% 0.212 300.6)
-
Step 700
700
#7637BD
oklch(49.2% 0.198 300.7)
-
Step 800
800
#602F99
oklch(42.8% 0.165 300.8)
-
Step 900
900 (this color)
#512F7D
oklch(38.9% 0.128 300.7)
-
Step 950
950
#2D1B47
oklch(27% 0.08 300)
#512F7D 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) | #014180 | 0.099 |
| Deuteranopia (no green cones) | #16407B | 0.089 |
| Tritanopia (no blue cones) | #483F51 | 0.096 |
| Achromatopsia (no color) | #414141 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512F7D
#512F7D
oklch(38.9% 0.128 300.7)
- #3E4B00
#3E4B00
oklch(38.7% 0.092 120.3)
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 #512F7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.061
- Indigo #4B0082 ΔE 0.072
- Royal Purple #4B006E ΔE 0.081
- Twilight #4E518B ΔE 0.088
- Imperial Purple #480CA8 ΔE 0.089
- Grape Purple #5D1451 ΔE 0.090
Use #512F7D 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.