#51328D
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.144 294.9), rgb(81, 50, 141).
Aa
White text reads best on this color (9.58:1).
About this color
#51328D is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.144 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 9.58:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #51328D |
| RGB | rgb(81, 50, 141) |
| HSL | hsl(260, 48%, 37%) |
| OKLCH | oklch(40.6% 0.144 294.9) |
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 #51328D | 9.58:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #51328D | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #51328D text on white | 9.58:1 | AAA | Lc 91.8 | Preferred for body text |
| #51328D text on black | 2.19:1 | Fails | Lc -10.6 | 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 800.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#DBD4F6
oklch(88.6% 0.047 294.9)
-
Step 300
300
#C4B6F2
oklch(80.9% 0.085 295.1)
-
Step 400
400
#A78EEB
oklch(70.6% 0.135 295.1)
-
Step 500
500
#936FE5
oklch(63.1% 0.172 295.1)
-
Step 600
600
#7E54D3
oklch(55.6% 0.187 294.8)
-
Step 700
700
#6B43B7
oklch(49.1% 0.175 295)
-
Step 800
800 (this color)
#51328D
oklch(40.6% 0.144 294.9)
-
Step 900
900
#473276
oklch(37.8% 0.112 294.7)
-
Step 950
950
#291E45
oklch(27% 0.071 294.2)
#51328D 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) | #004690 | 0.094 |
| Deuteranopia (no green cones) | #00448B | 0.094 |
| Tritanopia (no blue cones) | #41475A | 0.114 |
| Achromatopsia (no color) | #454545 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51328D
#51328D
oklch(40.6% 0.144 294.9)
- #484E00
#484E00
oklch(40.5% 0.091 114.7)
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 #51328D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.040
- Rebecca Purple #663399 ΔE 0.044
- Chrysanthemum #560BAD ΔE 0.071
- Imperial Purple #480CA8 ΔE 0.073
- Indigo #4B0082 ΔE 0.078
- Twilight #4E518B ΔE 0.080
- Cobalt #1E488F ΔE 0.082
Use #51328D 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.