#51436D
Closest named color: Dusk (#4E5481). oklch(41.6% 0.07 298.6), rgb(81, 67, 109).
Aa
White text reads best on this color (8.84:1).
About this color
#51436D is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.070 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.052 away. White text reads best on it, at 8.84:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.37:1 |
| White text | 8.84:1 |
Values
| HEX | #51436D |
| RGB | rgb(81, 67, 109) |
| HSL | hsl(260, 24%, 35%) |
| OKLCH | oklch(41.6% 0.07 298.6) |
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 #51436D | 8.84:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #51436D | 2.37:1 | Fails | Lc 13.8 | Not readable |
| #51436D text on white | 8.84:1 | AAA | Lc 90.2 | Preferred for body text |
| #51436D text on black | 2.37:1 | Fails | Lc -12.1 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F1
oklch(93.6% 0.012 301.3)
-
Step 200
200
#DBD6E7
oklch(88.5% 0.024 299.3)
-
Step 300
300
#C4BBD8
oklch(80.9% 0.041 299.6)
-
Step 400
400
#A698C5
oklch(70.7% 0.066 298.9)
-
Step 500
500
#907EB6
oklch(63.1% 0.085 298.7)
-
Step 600
600
#7A67A2
oklch(55.6% 0.092 298.2)
-
Step 700
700
#67558A
oklch(49% 0.085 298.9)
-
Step 800
800 (this color)
#51436D
oklch(41.6% 0.07 298.6)
-
Step 900
900
#453B5B
oklch(37.7% 0.055 298.1)
-
Step 950
950
#292335
oklch(27.1% 0.034 299.4)
#51436D 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) | #394A6F | 0.040 |
| Deuteranopia (no green cones) | #3B4A6C | 0.039 |
| Tritanopia (no blue cones) | #4C4A53 | 0.055 |
| Achromatopsia (no color) | #4A4A4A | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51436D
#51436D
oklch(41.6% 0.07 298.6)
- #485122
#485122
oklch(41.5% 0.07 118.6)
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 #51436D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.052
- Twilight #4E518B ΔE 0.056
- Dusty Grape #545775 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.058
- YInMn Blue #415A77 ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.070
- Blueberry #464196 ΔE 0.072
- Dusk Blue #26538D ΔE 0.078
Use #51436D 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.