#512B76
Closest named color: Dark Slate Blue (#483D8B). oklch(37.7% 0.125 304.4), rgb(81, 43, 118).
Aa
White text reads best on this color (10.73:1).
About this color
#512B76 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 0.054 away. White text reads best on it, at 10.73:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.95:1 |
| White text | 10.73:1 |
Values
| HEX | #512B76 |
| RGB | rgb(81, 43, 118) |
| HSL | hsl(270, 47%, 32%) |
| OKLCH | oklch(37.7% 0.125 304.4) |
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 #512B76 | 10.73:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #512B76 | 1.95:1 | Fails | Lc 9.5 | Not readable |
| #512B76 text on white | 10.73:1 | AAA | Lc 94.5 | Preferred for body text |
| #512B76 text on black | 1.95:1 | Fails | Lc -8.1 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E1D1F6
oklch(88.5% 0.053 304.9)
-
Step 300
300
#CEB2F2
oklch(81% 0.093 304.4)
-
Step 400
400
#B686EB
oklch(70.6% 0.15 304.8)
-
Step 500
500
#A464E5
oklch(63.1% 0.191 304.4)
-
Step 600
600
#9046D3
oklch(55.6% 0.208 304.5)
-
Step 700
700
#7A36B7
oklch(49.1% 0.194 304.2)
-
Step 800
800
#632E94
oklch(42.6% 0.161 304.2)
-
Step 900
900 (this color)
#512B76
oklch(37.7% 0.125 304.4)
-
Step 950
950
#2F1A45
oklch(26.9% 0.079 304.1)
#512B76 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) | #033D78 | 0.103 |
| Deuteranopia (no green cones) | #193E74 | 0.092 |
| Tritanopia (no blue cones) | #4A3A4C | 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°).
- #512B76
#512B76
oklch(37.7% 0.125 304.4)
- #374900
#374900
oklch(37.6% 0.094 124.1)
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 #512B76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.054
- Indigo #4B0082 ΔE 0.067
- Royal Purple #4B006E ΔE 0.070
- Rebecca Purple #663399 ΔE 0.072
- Blueberry #464196 ΔE 0.073
- Grape Purple #5D1451 ΔE 0.077
- Plum Purple #4E0550 ΔE 0.091
- Imperial Purple #480CA8 ΔE 0.096
Use #512B76 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.