#542C78
Closest named color: Dark Slate Blue (#483D8B). oklch(38.4% 0.127 305.5), rgb(84, 44, 120).
Aa
White text reads best on this color (10.45:1).
About this color
#542C78 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.127 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 10.45:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.45:1 |
Values
| HEX | #542C78 |
| RGB | rgb(84, 44, 120) |
| HSL | hsl(272, 46%, 32%) |
| OKLCH | oklch(38.4% 0.127 305.5) |
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 #542C78 | 10.45:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #542C78 | 2.00:1 | Fails | Lc 10.1 | Not readable |
| #542C78 text on white | 10.45:1 | AAA | Lc 93.8 | Preferred for body text |
| #542C78 text on black | 2.00:1 | Fails | Lc -8.7 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E1D1F6
oklch(88.5% 0.053 304.9)
-
Step 300
300
#CFB1F2
oklch(80.9% 0.095 305.4)
-
Step 400
400
#B785EB
oklch(70.6% 0.152 305.4)
-
Step 500
500
#A662E5
oklch(63% 0.195 305.5)
-
Step 600
600
#9244D3
oklch(55.6% 0.211 305.5)
-
Step 700
700
#7C34B7
oklch(49.1% 0.197 305.3)
-
Step 800
800
#652D94
oklch(42.7% 0.163 305.4)
-
Step 900
900 (this color)
#542C78
oklch(38.4% 0.127 305.5)
-
Step 950
950
#301A45
oklch(27.1% 0.079 305.3)
#542C78 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) | #053E7A | 0.105 |
| Deuteranopia (no green cones) | #1C4076 | 0.094 |
| Tritanopia (no blue cones) | #4E3B4D | 0.092 |
| Achromatopsia (no color) | #3F3F3F | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542C78
#542C78
oklch(38.4% 0.127 305.5)
- #374C00
#374C00
oklch(38.5% 0.097 125.6)
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 #542C78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Rebecca Purple #663399 ΔE 0.066
- Indigo #4B0082 ΔE 0.070
- Blueberry #464196 ΔE 0.070
- Royal Purple #4B006E ΔE 0.074
- Grape Purple #5D1451 ΔE 0.078
- Rich Purple #720058 ΔE 0.095
- Plum Purple #4E0550 ΔE 0.095
Use #542C78 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.