#542F87
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.141 299.3), rgb(84, 47, 135).
Aa
White text reads best on this color (9.84:1).
About this color
#542F87 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.141 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 9.84:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.13:1 |
| White text | 9.84:1 |
Values
| HEX | #542F87 |
| RGB | rgb(84, 47, 135) |
| HSL | hsl(265, 48%, 36%) |
| OKLCH | oklch(40% 0.141 299.3) |
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 #542F87 | 9.84:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #542F87 | 2.13:1 | Fails | Lc 11.6 | Not readable |
| #542F87 text on white | 9.84:1 | AAA | Lc 92.4 | Preferred for body text |
| #542F87 text on black | 2.13:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#F7F4FE
oklch(97.2% 0.014 299.8)
-
Step 100
100
#ECE6FC
oklch(93.6% 0.03 298.3)
-
Step 200
200
#DED1FB
oklch(88.4% 0.059 299.3)
-
Step 300
300
#CAB1FC
oklch(80.8% 0.107 299.3)
-
Step 400
400
#B185FA
oklch(70.8% 0.169 299.4)
-
Step 500
500
#9F60F7
oklch(63.2% 0.217 299.3)
-
Step 600
600
#8B3FE5
oklch(55.6% 0.235 299.4)
-
Step 700
700
#762FC7
oklch(49.1% 0.218 299.3)
-
Step 800
800
#6029A1
oklch(42.7% 0.181 299.4)
-
Step 900
900 (this color)
#542F87
oklch(40% 0.141 299.3)
-
Step 950
950
#2D194B
oklch(27% 0.089 298.7)
#542F87 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) | #00438A | 0.102 |
| Deuteranopia (no green cones) | #064385 | 0.101 |
| Tritanopia (no blue cones) | #494256 | 0.107 |
| Achromatopsia (no color) | #434343 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542F87
#542F87
oklch(40% 0.141 299.3)
- #424E00
#424E00
oklch(39.9% 0.094 119.3)
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 #542F87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Rebecca Purple #663399 ΔE 0.046
- Blueberry #464196 ΔE 0.051
- Indigo #4B0082 ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.076
- Imperial Purple #480CA8 ΔE 0.078
- Twilight #4E518B ΔE 0.086
- Royal Purple #4B006E ΔE 0.088
Use #542F87 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.