#512787
Closest named color: Dark Slate Blue (#483D8B). oklch(38.5% 0.152 299.1), rgb(81, 39, 135).
Aa
White text reads best on this color (10.55:1).
About this color
#512787 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.152 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.051 away. White text reads best on it, at 10.55:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.55:1 |
Values
| HEX | #512787 |
| RGB | rgb(81, 39, 135) |
| HSL | hsl(266, 55%, 34%) |
| OKLCH | oklch(38.5% 0.152 299.1) |
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 #512787 | 10.55:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #512787 | 1.98:1 | Fails | Lc 10.1 | Not readable |
| #512787 text on white | 10.55:1 | AAA | Lc 93.9 | Preferred for body text |
| #512787 text on black | 1.98:1 | Fails | Lc -8.7 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#ECE5FD
oklch(93.5% 0.033 299.1)
-
Step 200
200
#DED1FE
oklch(88.6% 0.063 298.3)
-
Step 300
300
#CBB0FF
oklch(80.9% 0.113 299.6)
-
Step 400
400
#B183FF
oklch(70.7% 0.179 298.9)
-
Step 500
500
#A05BFF
oklch(63.1% 0.232 298.9)
-
Step 600
600
#8D36EE
oklch(55.7% 0.253 299.2)
-
Step 700
700
#7825CF
oklch(49.1% 0.235 299.2)
-
Step 800
800
#6123A7
oklch(42.7% 0.194 299)
-
Step 900
900 (this color)
#512787
oklch(38.5% 0.152 299.1)
-
Step 950
950
#2E174E
oklch(27% 0.097 299)
#512787 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) | #003F8A | 0.104 |
| Deuteranopia (no green cones) | #003E85 | 0.104 |
| Tritanopia (no blue cones) | #443E54 | 0.114 |
| Achromatopsia (no color) | #3F3F3F | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512787
#512787
oklch(38.5% 0.152 299.1)
- #3F4A00
#3F4A00
oklch(38.6% 0.091 119)
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 #512787, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.051
- Indigo #4B0082 ΔE 0.054
- Rebecca Purple #663399 ΔE 0.057
- Blueberry #464196 ΔE 0.064
- Imperial Purple #480CA8 ΔE 0.067
- Chrysanthemum #560BAD ΔE 0.068
- Royal Purple #4B006E ΔE 0.072
- Indigo Blue #3A18B1 ΔE 0.088
Use #512787 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.