#543E8A
Closest named color: Dark Slate Blue (#483D8B). oklch(42.7% 0.122 294), rgb(84, 62, 138).
Aa
White text reads best on this color (8.63:1).
About this color
#543E8A is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.122 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.021 away. White text reads best on it, at 8.63:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #543E8A |
| RGB | rgb(84, 62, 138) |
| HSL | hsl(257, 38%, 39%) |
| OKLCH | oklch(42.7% 0.122 294) |
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 #543E8A | 8.63:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #543E8A | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #543E8A text on white | 8.63:1 | AAA | Lc 89.4 | Fine for body text |
| #543E8A text on black | 2.43:1 | Fails | Lc -12.8 | 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
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#DAD5F1
oklch(88.6% 0.038 293.8)
-
Step 300
300
#C2B8EB
oklch(80.8% 0.072 293.7)
-
Step 400
400
#A492E1
oklch(70.6% 0.115 293.7)
-
Step 500
500
#8F75D8
oklch(63% 0.146 293.9)
-
Step 600
600
#7A5CC5
oklch(55.6% 0.158 293.8)
-
Step 700
700
#674BAA
oklch(49.1% 0.146 293.9)
-
Step 800
800 (this color)
#543E8A
oklch(42.7% 0.122 294)
-
Step 900
900
#45366E
oklch(37.8% 0.094 293.8)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#543E8A 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) | #1D4D8D | 0.076 |
| Deuteranopia (no green cones) | #224A88 | 0.072 |
| Tritanopia (no blue cones) | #474E5E | 0.098 |
| Achromatopsia (no color) | #4C4C4C | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543E8A
#543E8A
oklch(42.7% 0.122 294)
- #4F5400
#4F5400
oklch(42.7% 0.096 113.7)
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 #543E8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.021
- Blueberry #464196 ΔE 0.030
- Rebecca Purple #663399 ΔE 0.047
- Twilight #4E518B ΔE 0.051
- Dusk #4E5481 ΔE 0.065
- Cobalt #1E488F ΔE 0.073
- Dusk Blue #26538D ΔE 0.077
- Denim Blue #3B5B92 ΔE 0.082
Use #543E8A 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.