#543783
Closest named color: Dark Slate Blue (#483D8B). oklch(41% 0.123 298.4), rgb(84, 55, 131).
Aa
White text reads best on this color (9.32:1).
About this color
#543783 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.123 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.027 away. White text reads best on it, at 9.32:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.32:1 |
Values
| HEX | #543783 |
| RGB | rgb(84, 55, 131) |
| HSL | hsl(263, 41%, 36%) |
| OKLCH | oklch(41% 0.123 298.4) |
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 #543783 | 9.32:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #543783 | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #543783 text on white | 9.32:1 | AAA | Lc 91.2 | Preferred for body text |
| #543783 text on black | 2.25:1 | Fails | Lc -11.1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DCD4F1
oklch(88.5% 0.04 298.2)
-
Step 300
300
#C6B7EA
oklch(80.9% 0.073 298.2)
-
Step 400
400
#AA90DF
oklch(70.7% 0.116 298.5)
-
Step 500
500
#9673D6
oklch(63.2% 0.147 298.4)
-
Step 600
600
#8159C3
oklch(55.6% 0.16 298.5)
-
Step 700
700
#6D48A8
oklch(49% 0.149 298.5)
-
Step 800
800 (this color)
#543783
oklch(41% 0.123 298.4)
-
Step 900
900
#49346D
oklch(37.7% 0.096 298.7)
-
Step 950
950
#2A1F40
oklch(27% 0.061 297.6)
#543783 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) | #144786 | 0.088 |
| Deuteranopia (no green cones) | #1F4681 | 0.081 |
| Tritanopia (no blue cones) | #4A4657 | 0.095 |
| Achromatopsia (no color) | #474747 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543783
#543783
oklch(41% 0.123 298.4)
- #465100
#465100
oklch(41.1% 0.096 118.3)
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 #543783, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.027
- Blueberry #464196 ΔE 0.043
- Rebecca Purple #663399 ΔE 0.049
- Twilight #4E518B ΔE 0.068
- Dusk #4E5481 ΔE 0.079
- Cobalt #1E488F ΔE 0.082
- Indigo #4B0082 ΔE 0.091
- Dusk Blue #26538D ΔE 0.091
Use #543783 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.