#542F7B
Closest named color: Dark Slate Blue (#483D8B). oklch(39.1% 0.126 303.5), rgb(84, 47, 123).
Aa
White text reads best on this color (10.14:1).
About this color
#542F7B is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.126 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.045 away. White text reads best on it, at 10.14:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.06:1 |
| White text | 10.14:1 |
Values
| HEX | #542F7B |
| RGB | rgb(84, 47, 123) |
| HSL | hsl(269, 45%, 33%) |
| OKLCH | oklch(39.1% 0.126 303.5) |
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 #542F7B | 10.14:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #542F7B | 2.06:1 | Fails | Lc 10.8 | Not readable |
| #542F7B text on white | 10.14:1 | AAA | Lc 93.2 | Preferred for body text |
| #542F7B text on black | 2.06:1 | Fails | Lc -9.3 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#E0D1F6
oklch(88.4% 0.053 303.7)
-
Step 300
300
#CDB2F3
oklch(80.9% 0.094 303.4)
-
Step 400
400
#B587ED
oklch(70.8% 0.151 303.6)
-
Step 500
500
#A364E7
oklch(63.1% 0.194 303.5)
-
Step 600
600
#8F46D5
oklch(55.7% 0.21 303.6)
-
Step 700
700
#7936B8
oklch(49% 0.195 303.4)
-
Step 800
800
#632E95
oklch(42.7% 0.162 303.8)
-
Step 900
900 (this color)
#542F7B
oklch(39.1% 0.126 303.5)
-
Step 950
950
#2F1A46
oklch(27% 0.081 303.5)
#542F7B 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) | #09417D | 0.101 |
| Deuteranopia (no green cones) | #1C4179 | 0.091 |
| Tritanopia (no blue cones) | #4D3E50 | 0.092 |
| Achromatopsia (no color) | #414141 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542F7B
#542F7B
oklch(39.1% 0.126 303.5)
- #3B4D00
#3B4D00
oklch(39.1% 0.096 123.6)
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 #542F7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.045
- Rebecca Purple #663399 ΔE 0.060
- Blueberry #464196 ΔE 0.063
- Indigo #4B0082 ΔE 0.075
- Royal Purple #4B006E ΔE 0.082
- Grape Purple #5D1451 ΔE 0.085
- Twilight #4E518B ΔE 0.088
- Chrysanthemum #560BAD ΔE 0.094
Use #542F7B 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.