#512F89
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.143 296.7), rgb(81, 47, 137).
Aa
White text reads best on this color (9.91:1).
About this color
#512F89 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.143 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 9.91:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.11:1 |
| White text | 9.91:1 |
Values
| HEX | #512F89 |
| RGB | rgb(81, 47, 137) |
| HSL | hsl(263, 49%, 36%) |
| OKLCH | oklch(39.8% 0.143 296.7) |
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 #512F89 | 9.91:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #512F89 | 2.11:1 | Fails | Lc 11.4 | Not readable |
| #512F89 text on white | 9.91:1 | AAA | Lc 92.5 | Preferred for body text |
| #512F89 text on black | 2.11:1 | Fails | Lc -9.9 | 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FD
oklch(93.6% 0.031 295.8)
-
Step 200
200
#DCD2FD
oklch(88.5% 0.059 295.8)
-
Step 300
300
#C7B2FE
oklch(80.8% 0.108 296.6)
-
Step 400
400
#AD86FD
oklch(70.7% 0.171 296.9)
-
Step 500
500
#9A61FB
oklch(63.1% 0.219 296.6)
-
Step 600
600
#8640EA
oklch(55.6% 0.238 296.6)
-
Step 700
700
#722FCC
oklch(49.1% 0.222 296.5)
-
Step 800
800
#5D2AA5
oklch(42.8% 0.184 296.7)
-
Step 900
900 (this color)
#512F89
oklch(39.8% 0.143 296.7)
-
Step 950
950
#2C194C
oklch(26.9% 0.09 297.1)
#512F89 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) | #00438C | 0.097 |
| Deuteranopia (no green cones) | #004287 | 0.097 |
| Tritanopia (no blue cones) | #434357 | 0.110 |
| Achromatopsia (no color) | #434343 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512F89
#512F89
oklch(39.8% 0.143 296.7)
- #444D00
#444D00
oklch(39.8% 0.092 117.2)
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 #512F89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.049
- Indigo #4B0082 ΔE 0.071
- Chrysanthemum #560BAD ΔE 0.073
- Imperial Purple #480CA8 ΔE 0.073
- Twilight #4E518B ΔE 0.086
- Cobalt #1E488F ΔE 0.087
Use #512F89 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.