#543797
Closest named color: Dark Slate Blue (#483D8B). oklch(42.5% 0.15 292.8), rgb(84, 55, 151).
Aa
White text reads best on this color (8.85:1).
About this color
#543797 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.150 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.031 away. White text reads best on it, at 8.85:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.37:1 |
| White text | 8.85:1 |
Values
| HEX | #543797 |
| RGB | rgb(84, 55, 151) |
| HSL | hsl(258, 47%, 40%) |
| OKLCH | oklch(42.5% 0.15 292.8) |
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 #543797 | 8.85:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #543797 | 2.37:1 | Fails | Lc 14.1 | Not readable |
| #543797 text on white | 8.85:1 | AAA | Lc 89.9 | Fine for body text |
| #543797 text on black | 2.37:1 | Fails | Lc -12.4 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#DAD4F7
oklch(88.6% 0.048 293.3)
-
Step 300
300
#C2B7F5
oklch(81% 0.087 292.5)
-
Step 400
400
#A48EF0
oklch(70.6% 0.141 292.7)
-
Step 500
500
#906FEA
oklch(63.2% 0.179 292.9)
-
Step 600
600
#7B53D8
oklch(55.5% 0.194 292.8)
-
Step 700
700
#6842BC
oklch(49.1% 0.182 292.8)
-
Step 800
800 (this color)
#543797
oklch(42.5% 0.15 292.8)
-
Step 900
900
#453179
oklch(37.6% 0.118 292.6)
-
Step 950
950
#281E47
oklch(27% 0.074 292)
#543797 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) | #004B9A | 0.093 |
| Deuteranopia (no green cones) | #004895 | 0.093 |
| Tritanopia (no blue cones) | #414D62 | 0.119 |
| Achromatopsia (no color) | #4A4A4A | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #543797
#543797
oklch(42.5% 0.15 292.8)
- #4F5300
#4F5300
oklch(42.4% 0.095 113)
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 #543797, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.031
- Rebecca Purple #663399 ΔE 0.034
- Chrysanthemum #560BAD ΔE 0.069
- Twilight #4E518B ΔE 0.071
- Imperial Purple #480CA8 ΔE 0.075
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Cobalt #1E488F ΔE 0.081
Use #543797 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.