#543C9C
Closest named color: Blueberry (#464196). oklch(43.7% 0.149 290.4), rgb(84, 60, 156).
Aa
White text reads best on this color (8.38:1).
About this color
#543C9C is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.149 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.027 away. White text reads best on it, at 8.38:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Blueberry (#464196) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #543C9C |
| RGB | rgb(84, 60, 156) |
| HSL | hsl(255, 44%, 42%) |
| OKLCH | oklch(43.7% 0.149 290.4) |
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 #543C9C | 8.38:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #543C9C | 2.50:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #543C9C text on white | 8.38:1 | AAA | Lc 88.5 | Fine for body text |
| #543C9C text on black | 2.50:1 | Fails | Lc -13.6 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D8D4F8
oklch(88.4% 0.049 290.4)
-
Step 300
300
#C0B7F6
oklch(80.9% 0.088 290.8)
-
Step 400
400
#A190F1
oklch(70.8% 0.139 290.4)
-
Step 500
500
#8B71EC
oklch(63.2% 0.178 290.1)
-
Step 600
600
#7755DA
oklch(55.6% 0.194 290.4)
-
Step 700
700
#6444BD
oklch(49% 0.181 290.3)
-
Step 800
800 (this color)
#543C9C
oklch(43.7% 0.149 290.4)
-
Step 900
900
#43327A
oklch(37.6% 0.118 290.5)
-
Step 950
950
#271E47
oklch(26.9% 0.074 290.7)
#543C9C 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) | #004F9F | 0.089 |
| Deuteranopia (no green cones) | #004B9A | 0.088 |
| Tritanopia (no blue cones) | #3E5266 | 0.121 |
| Achromatopsia (no color) | #4D4D4D | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543C9C
#543C9C
oklch(43.7% 0.149 290.4)
- #555600
#555600
oklch(43.8% 0.096 110.6)
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 #543C9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.027
- Dark Slate Blue #483D8B ΔE 0.035
- Rebecca Purple #663399 ΔE 0.037
- Twilight #4E518B ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Bluey Purple #6241C7 ΔE 0.073
- Chrysanthemum #560BAD ΔE 0.075
- Blurple #5539CC ΔE 0.077
Use #543C9C 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.