#543AA0
Closest named color: Blueberry (#464196). oklch(43.7% 0.157 290.1), rgb(84, 58, 160).
Aa
White text reads best on this color (8.43:1).
About this color
#543AA0 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.157 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.032 away. White text reads best on it, at 8.43:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Blueberry (#464196) |
| Black text | 2.48:1 |
| White text | 8.43:1 |
Values
| HEX | #543AA0 |
| RGB | rgb(84, 58, 160) |
| HSL | hsl(255, 47%, 43%) |
| OKLCH | oklch(43.7% 0.157 290.1) |
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 #543AA0 | 8.43:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #543AA0 | 2.48:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #543AA0 text on white | 8.43:1 | AAA | Lc 88.6 | Fine for body text |
| #543AA0 text on black | 2.48:1 | 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
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4F9
oklch(88.5% 0.051 290.3)
-
Step 300
300
#BFB7F8
oklch(80.9% 0.091 289.8)
-
Step 400
400
#A08FF5
oklch(70.8% 0.146 289.8)
-
Step 500
500
#8B6FF1
oklch(63.2% 0.187 289.9)
-
Step 600
600
#7752DF
oklch(55.5% 0.204 290.2)
-
Step 700
700
#6441C2
oklch(49% 0.191 290)
-
Step 800
800 (this color)
#543AA0
oklch(43.7% 0.157 290.1)
-
Step 900
900
#43317D
oklch(37.7% 0.123 290.1)
-
Step 950
950
#271E49
oklch(27.1% 0.077 289.9)
#543AA0 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) | #004FA3 | 0.090 |
| Deuteranopia (no green cones) | #004B9E | 0.089 |
| Tritanopia (no blue cones) | #3C5267 | 0.128 |
| Achromatopsia (no color) | #4D4D4D | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543AA0
#543AA0
oklch(43.7% 0.157 290.1)
- #555500
#555500
oklch(43.5% 0.095 109.8)
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 #543AA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.032
- Rebecca Purple #663399 ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.040
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Chrysanthemum #560BAD ΔE 0.068
- Bluey Purple #6241C7 ΔE 0.068
- Blurple #5539CC ΔE 0.070
- Twilight #4E518B ΔE 0.071
Use #543AA0 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.