#51356E
Closest named color: Dark Slate Blue (#483D8B). oklch(38.9% 0.098 305), rgb(81, 53, 110).
Aa
White text reads best on this color (10.07:1).
About this color
#51356E is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.098 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 0.052 away. White text reads best on it, at 10.07:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.07:1 |
Values
| HEX | #51356E |
| RGB | rgb(81, 53, 110) |
| HSL | hsl(269, 35%, 32%) |
| OKLCH | oklch(38.9% 0.098 305) |
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 #51356E | 10.07:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #51356E | 2.08:1 | Fails | Lc 10.7 | Not readable |
| #51356E text on white | 10.07:1 | AAA | Lc 93.2 | Preferred for body text |
| #51356E text on black | 2.08:1 | Fails | Lc -9.3 | 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
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3EF
oklch(88.5% 0.04 304.9)
-
Step 300
300
#CBB5E7
oklch(80.8% 0.073 304.8)
-
Step 400
400
#B28DDB
oklch(70.7% 0.117 305.4)
-
Step 500
500
#9F6FD1
oklch(63.1% 0.149 305.1)
-
Step 600
600
#8A55BE
oklch(55.6% 0.162 305)
-
Step 700
700
#7544A4
oklch(49% 0.152 305)
-
Step 800
800
#5F3985
oklch(42.7% 0.125 304.7)
-
Step 900
900 (this color)
#51356E
oklch(38.9% 0.098 305)
-
Step 950
950
#2D1E3E
oklch(27% 0.06 304.3)
#51356E 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) | #244170 | 0.073 |
| Deuteranopia (no green cones) | #2C426D | 0.066 |
| Tritanopia (no blue cones) | #4C3F4C | 0.073 |
| Achromatopsia (no color) | #424242 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51356E
#51356E
oklch(38.9% 0.098 305)
- #394D00
#394D00
oklch(38.9% 0.098 124.9)
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 #51356E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Blueberry #464196 ΔE 0.072
- Grape Purple #5D1451 ΔE 0.081
- Rebecca Purple #663399 ΔE 0.081
- Twilight #4E518B ΔE 0.082
- Dusk #4E5481 ΔE 0.086
- Dark Grey Blue #29465B ΔE 0.088
- Twilight Blue #0A437A ΔE 0.092
Use #51356E 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.