#51356D
Closest named color: Dark Slate Blue (#483D8B). oklch(38.8% 0.096 305.5), rgb(81, 53, 109).
Aa
White text reads best on this color (10.09:1).
About this color
#51356D is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.096 and its hue 305°. 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 10.09:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.07:1 |
| White text | 10.09:1 |
Values
| HEX | #51356D |
| RGB | rgb(81, 53, 109) |
| HSL | hsl(270, 35%, 32%) |
| OKLCH | oklch(38.8% 0.096 305.5) |
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 #51356D | 10.09:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #51356D | 2.07:1 | Fails | Lc 10.7 | Not readable |
| #51356D text on white | 10.09:1 | AAA | Lc 93.2 | Preferred for body text |
| #51356D text on black | 2.07:1 | Fails | Lc -9.2 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F5
oklch(93.7% 0.02 305.3)
-
Step 200
200
#DFD3EF
oklch(88.5% 0.04 304.9)
-
Step 300
300
#CCB5E6
oklch(80.9% 0.072 306.1)
-
Step 400
400
#B28DDA
oklch(70.6% 0.116 305.7)
-
Step 500
500
#9F6FD0
oklch(63.1% 0.148 305.4)
-
Step 600
600
#8A55BD
oklch(55.6% 0.161 305.3)
-
Step 700
700
#7545A3
oklch(49.1% 0.149 305.1)
-
Step 800
800
#5F3984
oklch(42.6% 0.124 305.1)
-
Step 900
900 (this color)
#51356D
oklch(38.8% 0.096 305.5)
-
Step 950
950
#2E1E3E
oklch(27.1% 0.061 305.8)
#51356D 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) | #25416F | 0.072 |
| Deuteranopia (no green cones) | #2D426C | 0.065 |
| Tritanopia (no blue cones) | #4C3F4C | 0.071 |
| Achromatopsia (no color) | #424242 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51356D
#51356D
oklch(38.8% 0.096 305.5)
- #384D03
#384D03
oklch(38.8% 0.096 125.7)
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 #51356D, 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
- Blueberry #464196 ΔE 0.073
- Grape Purple #5D1451 ΔE 0.080
- Rebecca Purple #663399 ΔE 0.083
- Twilight #4E518B ΔE 0.083
- Dusk #4E5481 ΔE 0.086
- Dark Grey Blue #29465B ΔE 0.087
- Twilight Blue #0A437A ΔE 0.092
Use #51356D 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.