#512E88
Closest named color: Dark Slate Blue (#483D8B). oklch(39.6% 0.143 297.3), rgb(81, 46, 136).
Aa
White text reads best on this color (10.01:1).
About this color
#512E88 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 0.037 away. White text reads best on it, at 10.01:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #512E88 |
| RGB | rgb(81, 46, 136) |
| HSL | hsl(263, 49%, 36%) |
| OKLCH | oklch(39.6% 0.143 297.3) |
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 #512E88 | 10.01:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #512E88 | 2.09:1 | Fails | Lc 11.2 | Not readable |
| #512E88 text on white | 10.01:1 | AAA | Lc 92.8 | Preferred for body text |
| #512E88 text on black | 2.09:1 | Fails | Lc -9.7 | 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
#ECE6FD
oklch(93.6% 0.031 297.7)
-
Step 200
200
#DDD1FC
oklch(88.4% 0.06 297.9)
-
Step 300
300
#C8B2FE
oklch(80.9% 0.108 297.2)
-
Step 400
400
#AE86FD
oklch(70.8% 0.171 297.4)
-
Step 500
500
#9B60FB
oklch(63% 0.221 297.2)
-
Step 600
600
#883FE9
oklch(55.6% 0.238 297.6)
-
Step 700
700
#732FCB
oklch(49.1% 0.221 297.1)
-
Step 800
800
#5E29A4
oklch(42.7% 0.184 297.6)
-
Step 900
900 (this color)
#512E88
oklch(39.6% 0.143 297.3)
-
Step 950
950
#2C194C
oklch(26.9% 0.09 297.1)
#512E88 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) | #00438B | 0.098 |
| Deuteranopia (no green cones) | #004186 | 0.098 |
| Tritanopia (no blue cones) | #444356 | 0.112 |
| Achromatopsia (no color) | #424242 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512E88
#512E88
oklch(39.6% 0.143 297.3)
- #434C00
#434C00
oklch(39.5% 0.091 117.2)
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 #512E88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Rebecca Purple #663399 ΔE 0.050
- Blueberry #464196 ΔE 0.051
- Indigo #4B0082 ΔE 0.068
- Chrysanthemum #560BAD ΔE 0.073
- Imperial Purple #480CA8 ΔE 0.073
- Royal Purple #4B006E ΔE 0.085
- Twilight #4E518B ΔE 0.088
Use #512E88 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.