#542D73
Closest named color: Dark Slate Blue (#483D8B). oklch(38.2% 0.119 307.4), rgb(84, 45, 115).
Aa
White text reads best on this color (10.50:1).
About this color
#542D73 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.119 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.056 away. White text reads best on it, at 10.50:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.99:1 |
| White text | 10.50:1 |
Values
| HEX | #542D73 |
| RGB | rgb(84, 45, 115) |
| HSL | hsl(273, 44%, 31%) |
| OKLCH | oklch(38.2% 0.119 307.4) |
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 #542D73 | 10.50:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #542D73 | 1.99:1 | Fails | Lc 9.9 | Not readable |
| #542D73 text on white | 10.50:1 | AAA | Lc 94.0 | Preferred for body text |
| #542D73 text on black | 1.99:1 | Fails | Lc -8.5 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F8
oklch(93.6% 0.025 305.8)
-
Step 200
200
#E2D1F3
oklch(88.5% 0.049 307.8)
-
Step 300
300
#D0B2EE
oklch(81% 0.089 307.2)
-
Step 400
400
#B887E5
oklch(70.7% 0.142 307.1)
-
Step 500
500
#A765DD
oklch(63.1% 0.182 307.4)
-
Step 600
600
#9348CB
oklch(55.7% 0.198 307.5)
-
Step 700
700
#7D38B0
oklch(49.2% 0.185 307.2)
-
Step 800
800
#66308E
oklch(42.8% 0.152 307.6)
-
Step 900
900 (this color)
#542D73
oklch(38.2% 0.119 307.4)
-
Step 950
950
#301A42
oklch(26.9% 0.075 307.5)
#542D73 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) | #123E75 | 0.099 |
| Deuteranopia (no green cones) | #224071 | 0.089 |
| Tritanopia (no blue cones) | #4F3A4B | 0.085 |
| Achromatopsia (no color) | #3F3F3F | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542D73
#542D73
oklch(38.2% 0.119 307.4)
- #344C00
#344C00
oklch(38.2% 0.099 127.4)
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 #542D73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.056
- Rebecca Purple #663399 ΔE 0.072
- Grape Purple #5D1451 ΔE 0.073
- Blueberry #464196 ΔE 0.075
- Indigo #4B0082 ΔE 0.076
- Royal Purple #4B006E ΔE 0.076
- Rich Purple #720058 ΔE 0.091
- Plum Purple #4E0550 ΔE 0.091
Use #542D73 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.