#543BA4
Closest named color: Blueberry (#464196). oklch(44.1% 0.161 289), rgb(84, 59, 164).
Aa
White text reads best on this color (8.27:1).
About this color
#543BA4 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.161 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.035 away. White text reads best on it, at 8.27:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #543BA4 |
| RGB | rgb(84, 59, 164) |
| HSL | hsl(254, 47%, 44%) |
| OKLCH | oklch(44.1% 0.161 289) |
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 #543BA4 | 8.27:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #543BA4 | 2.53:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #543BA4 text on white | 8.27:1 | AAA | Lc 88.1 | Fine for body text |
| #543BA4 text on black | 2.53:1 | Fails | Lc -14.0 | 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
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D7D4FA
oklch(88.4% 0.052 288.9)
-
Step 300
300
#BEB7FA
oklch(80.9% 0.094 288.9)
-
Step 400
400
#9F8FF8
oklch(70.8% 0.15 289)
-
Step 500
500
#896EF4
oklch(63% 0.193 288.9)
-
Step 600
600
#7552E3
oklch(55.7% 0.209 288.9)
-
Step 700
700
#6341C5
oklch(49.1% 0.194 289)
-
Step 800
800 (this color)
#543BA4
oklch(44.1% 0.161 289)
-
Step 900
900
#42317F
oklch(37.8% 0.126 288.9)
-
Step 950
950
#261E4A
oklch(27.1% 0.079 288.4)
#543BA4 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) | #0051A7 | 0.089 |
| Deuteranopia (no green cones) | #004CA2 | 0.087 |
| Tritanopia (no blue cones) | #39546A | 0.131 |
| Achromatopsia (no color) | #4E4E4E | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543BA4
#543BA4
oklch(44.1% 0.161 289)
- #575600
#575600
oklch(44% 0.095 109)
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 #543BA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.035
- Rebecca Purple #663399 ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.046
- Blue With A Hint Of Purple #533CC6 ΔE 0.054
- Bluey Purple #6241C7 ΔE 0.062
- Blurple #5539CC ΔE 0.064
- Chrysanthemum #560BAD ΔE 0.068
- Majorelle Blue #3F37C9 ΔE 0.070
Use #543BA4 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.