#543BA9
Closest named color: Blueberry (#464196). oklch(44.5% 0.168 288.1), rgb(84, 59, 169).
Aa
White text reads best on this color (8.15:1).
About this color
#543BA9 is a dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.168 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.040 away. White text reads best on it, at 8.15:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #543BA9 |
| RGB | rgb(84, 59, 169) |
| HSL | hsl(254, 48%, 45%) |
| OKLCH | oklch(44.5% 0.168 288.1) |
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 #543BA9 | 8.15:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #543BA9 | 2.57:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #543BA9 text on white | 8.15:1 | AAA | Lc 87.7 | Fine for body text |
| #543BA9 text on black | 2.57:1 | Fails | Lc -14.4 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FC
oklch(93.5% 0.028 288)
-
Step 200
200
#D7D4FC
oklch(88.5% 0.055 288.7)
-
Step 300
300
#BDB7FD
oklch(80.9% 0.098 287.9)
-
Step 400
400
#9D8EFC
oklch(70.7% 0.157 287.9)
-
Step 500
500
#886DF9
oklch(63.1% 0.2 288.1)
-
Step 600
600
#7450E8
oklch(55.7% 0.217 288.1)
-
Step 700
700
#623FCA
oklch(49.2% 0.203 288.1)
-
Step 800
800 (this color)
#543BA9
oklch(44.5% 0.168 288.1)
-
Step 900
900
#413081
oklch(37.6% 0.13 288.1)
-
Step 950
950
#261D4C
oklch(27% 0.083 288.3)
#543BA9 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) | #0052AC | 0.089 |
| Deuteranopia (no green cones) | #004CA7 | 0.086 |
| Tritanopia (no blue cones) | #36566C | 0.139 |
| Achromatopsia (no color) | #4F4F4F | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543BA9
#543BA9
oklch(44.5% 0.168 288.1)
- #595700
#595700
oklch(44.4% 0.096 108.2)
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 #543BA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.040
- Rebecca Purple #663399 ΔE 0.044
- Blue With A Hint Of Purple #533CC6 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.055
- Blurple #5539CC ΔE 0.056
- Majorelle Blue #3F37C9 ΔE 0.063
- Chrysanthemum #560BAD ΔE 0.067
Use #543BA9 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.