#51305E
Closest named color: Grape Purple (#5D1451). oklch(37% 0.086 315.8), rgb(81, 48, 94).
Aa
White text reads best on this color (10.85:1).
About this color
#51305E is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.086 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.062 away. White text reads best on it, at 10.85:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.93:1 |
| White text | 10.85:1 |
Values
| HEX | #51305E |
| RGB | rgb(81, 48, 94) |
| HSL | hsl(283, 32%, 28%) |
| OKLCH | oklch(37% 0.086 315.8) |
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 #51305E | 10.85:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #51305E | 1.93:1 | Fails | Lc 9.0 | Not readable |
| #51305E text on white | 10.85:1 | AAA | Lc 95.0 | Preferred for body text |
| #51305E text on black | 1.93:1 | Fails | Lc -7.7 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F2
oklch(93.5% 0.019 317.7)
-
Step 200
200
#E3D2E9
oklch(88.4% 0.036 317.3)
-
Step 300
300
#D1B4DD
oklch(80.8% 0.065 316)
-
Step 400
400
#BA8DCC
oklch(70.8% 0.102 316.1)
-
Step 500
500
#A86FBF
oklch(63.2% 0.131 315.7)
-
Step 600
600
#9355AB
oklch(55.6% 0.143 315.9)
-
Step 700
700
#7D4593
oklch(49.1% 0.133 315.7)
-
Step 800
800
#663977
oklch(42.7% 0.11 316.1)
-
Step 900
900 (this color)
#51305E
oklch(37% 0.086 315.8)
-
Step 950
950
#311E38
oklch(27.1% 0.053 316.6)
#51305E 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) | #273B60 | 0.074 |
| Deuteranopia (no green cones) | #313E5D | 0.065 |
| Tritanopia (no blue cones) | #503742 | 0.058 |
| Achromatopsia (no color) | #3D3D3D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51305E
#51305E
oklch(37% 0.086 315.8)
- #2A4A17
#2A4A17
oklch(37.2% 0.087 135.7)
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 #51305E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.080
- Purple Brown #673A3F ΔE 0.082
- Plum Purple #4E0550 ΔE 0.085
- Onyx #343A40 ΔE 0.085
- Prussian Blue #1D3557 ΔE 0.088
- Charcoal Grey #3C4142 ΔE 0.088
- Dark Grey Blue #29465B ΔE 0.088
Use #51305E 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.