#543A85
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.121 296.8), rgb(84, 58, 133).
Aa
White text reads best on this color (9.04:1).
About this color
#543A85 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.121 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.023 away. White text reads best on it, at 9.04:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.32:1 |
| White text | 9.04:1 |
Values
| HEX | #543A85 |
| RGB | rgb(84, 58, 133) |
| HSL | hsl(261, 39%, 37%) |
| OKLCH | oklch(41.6% 0.121 296.8) |
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 #543A85 | 9.04:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #543A85 | 2.32:1 | Fails | Lc 13.4 | Not readable |
| #543A85 text on white | 9.04:1 | AAA | Lc 90.5 | Preferred for body text |
| #543A85 text on black | 2.32:1 | Fails | Lc -11.8 | 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
#DBD4F1
oklch(88.4% 0.04 296.6)
-
Step 300
300
#C5B8EA
oklch(81% 0.071 296.7)
-
Step 400
400
#A891DF
oklch(70.7% 0.114 297)
-
Step 500
500
#9374D6
oklch(63.1% 0.145 296.6)
-
Step 600
600
#7E5AC3
oklch(55.5% 0.158 296.7)
-
Step 700
700
#6B4AA8
oklch(49.2% 0.146 296.9)
-
Step 800
800 (this color)
#543A85
oklch(41.6% 0.121 296.8)
-
Step 900
900
#47356D
oklch(37.7% 0.094 296.4)
-
Step 950
950
#2A1F40
oklch(27% 0.061 297.6)
#543A85 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) | #194988 | 0.082 |
| Deuteranopia (no green cones) | #214883 | 0.077 |
| Tritanopia (no blue cones) | #494959 | 0.095 |
| Achromatopsia (no color) | #494949 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543A85
#543A85
oklch(41.6% 0.121 296.8)
- #495200
#495200
oklch(41.6% 0.096 116.8)
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 #543A85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.023
- Blueberry #464196 ΔE 0.038
- Rebecca Purple #663399 ΔE 0.049
- Twilight #4E518B ΔE 0.060
- Dusk #4E5481 ΔE 0.072
- Cobalt #1E488F ΔE 0.078
- Dusk Blue #26538D ΔE 0.085
- Dusty Grape #545775 ΔE 0.091
Use #543A85 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.