#543A88
Closest named color: Dark Slate Blue (#483D8B). oklch(41.8% 0.125 295.9), rgb(84, 58, 136).
Aa
White text reads best on this color (8.98:1).
About this color
#543A88 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.125 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.022 away. White text reads best on it, at 8.98:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #543A88 |
| RGB | rgb(84, 58, 136) |
| HSL | hsl(260, 40%, 38%) |
| OKLCH | oklch(41.8% 0.125 295.9) |
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 #543A88 | 8.98:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #543A88 | 2.33:1 | Fails | Lc 13.6 | Not readable |
| #543A88 text on white | 8.98:1 | AAA | Lc 90.3 | Preferred for body text |
| #543A88 text on black | 2.33:1 | Fails | Lc -11.9 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F2
oklch(88.5% 0.041 296.2)
-
Step 300
300
#C4B8EB
oklch(81% 0.072 295.5)
-
Step 400
400
#A791E1
oklch(70.7% 0.117 295.9)
-
Step 500
500
#9273D9
oklch(63% 0.151 295.8)
-
Step 600
600
#7D5AC6
oklch(55.6% 0.162 295.6)
-
Step 700
700
#6A49AB
oklch(49.1% 0.151 295.9)
-
Step 800
800 (this color)
#543A88
oklch(41.8% 0.125 295.9)
-
Step 900
900
#47346F
oklch(37.6% 0.099 296.2)
-
Step 950
950
#291F41
oklch(26.9% 0.062 295.5)
#543A88 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) | #154A8B | 0.084 |
| Deuteranopia (no green cones) | #1E4886 | 0.079 |
| Tritanopia (no blue cones) | #484A5B | 0.098 |
| Achromatopsia (no color) | #494949 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543A88
#543A88
oklch(41.8% 0.125 295.9)
- #4B5200
#4B5200
oklch(41.8% 0.095 115.3)
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 #543A88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.022
- Blueberry #464196 ΔE 0.035
- Rebecca Purple #663399 ΔE 0.045
- Twilight #4E518B ΔE 0.060
- Dusk #4E5481 ΔE 0.074
- Cobalt #1E488F ΔE 0.077
- Dusk Blue #26538D ΔE 0.085
- Denim Blue #3B5B92 ΔE 0.091
Use #543A88 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.