#543F67
Closest named color: Dusk (#4E5481). oklch(40.8% 0.07 307.7), rgb(84, 63, 103).
Aa
White text reads best on this color (9.19:1).
About this color
#543F67 is a dark, muted purple. In OKLCH its lightness is 41%, its chroma 0.070 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.065 away. White text reads best on it, at 9.19:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | muted (0.070) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #543F67 |
| RGB | rgb(84, 63, 103) |
| HSL | hsl(272, 24%, 33%) |
| OKLCH | oklch(40.8% 0.07 307.7) |
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 #543F67 | 9.19:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #543F67 | 2.28:1 | Fails | Lc 12.8 | Not readable |
| #543F67 text on white | 9.19:1 | AAA | Lc 91.1 | Preferred for body text |
| #543F67 text on black | 2.28:1 | Fails | Lc -11.2 | 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 800.
-
Step 50
50
#F6F4F8
oklch(97% 0.006 308.4)
-
Step 100
100
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DDD5E5
oklch(88.4% 0.023 308.2)
-
Step 300
300
#C8BAD6
oklch(80.9% 0.042 307.9)
-
Step 400
400
#AC96C1
oklch(70.7% 0.066 307.9)
-
Step 500
500
#977CB1
oklch(63.1% 0.083 307.4)
-
Step 600
600
#82649D
oklch(55.6% 0.092 307.8)
-
Step 700
700
#6E5386
oklch(49.1% 0.085 307.8)
-
Step 800
800 (this color)
#543F67
oklch(40.8% 0.07 307.7)
-
Step 900
900
#493A58
oklch(37.7% 0.053 306.9)
-
Step 950
950
#2B2234
oklch(27% 0.035 307)
#543F67 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) | #374769 | 0.049 |
| Deuteranopia (no green cones) | #3B4866 | 0.047 |
| Tritanopia (no blue cones) | #51454E | 0.052 |
| Achromatopsia (no color) | #484848 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543F67
#543F67
oklch(40.8% 0.07 307.7)
- #3F5125
#3F5125
oklch(40.8% 0.071 127.6)
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 #543F67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.066
- Dusty Grape #545775 ΔE 0.068
- Twilight #4E518B ΔE 0.069
- Purple Brown #673A3F ΔE 0.073
- Dark Grey Blue #29465B ΔE 0.073
- Brownish Purple #76424E ΔE 0.079
- YInMn Blue #415A77 ΔE 0.079
Use #543F67 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.