#542D74
Closest named color: Dark Slate Blue (#483D8B). oklch(38.3% 0.12 306.9), rgb(84, 45, 116).
Aa
White text reads best on this color (10.47:1).
About this color
#542D74 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.120 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.055 away. White text reads best on it, at 10.47:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.47:1 |
Values
| HEX | #542D74 |
| RGB | rgb(84, 45, 116) |
| HSL | hsl(273, 44%, 32%) |
| OKLCH | oklch(38.3% 0.12 306.9) |
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 #542D74 | 10.47:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #542D74 | 2.00:1 | Fails | Lc 10.0 | Not readable |
| #542D74 text on white | 10.47:1 | AAA | Lc 93.9 | Preferred for body text |
| #542D74 text on black | 2.00:1 | Fails | Lc -8.6 | 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
#EEE6F8
oklch(93.6% 0.025 305.8)
-
Step 200
200
#E2D1F4
oklch(88.5% 0.051 307.2)
-
Step 300
300
#D0B2EF
oklch(81% 0.09 306.9)
-
Step 400
400
#B887E6
oklch(70.7% 0.143 306.8)
-
Step 500
500
#A765DF
oklch(63.2% 0.184 306.9)
-
Step 600
600
#9247CC
oklch(55.5% 0.2 306.9)
-
Step 700
700
#7D37B1
oklch(49.1% 0.187 307.1)
-
Step 800
800
#652F8F
oklch(42.6% 0.154 306.8)
-
Step 900
900 (this color)
#542D74
oklch(38.3% 0.12 306.9)
-
Step 950
950
#301A43
oklch(26.9% 0.077 306.7)
#542D74 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) | #103E76 | 0.100 |
| Deuteranopia (no green cones) | #214072 | 0.090 |
| Tritanopia (no blue cones) | #4F3B4C | 0.086 |
| Achromatopsia (no color) | #3F3F3F | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542D74
#542D74
oklch(38.3% 0.12 306.9)
- #354C00
#354C00
oklch(38.3% 0.099 126.8)
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 #542D74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.055
- Rebecca Purple #663399 ΔE 0.071
- Blueberry #464196 ΔE 0.074
- Grape Purple #5D1451 ΔE 0.074
- Indigo #4B0082 ΔE 0.075
- Royal Purple #4B006E ΔE 0.076
- Rich Purple #720058 ΔE 0.092
- Plum Purple #4E0550 ΔE 0.092
Use #542D74 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.