#542B81
Closest named color: Dark Slate Blue (#483D8B). oklch(38.9% 0.139 302.2), rgb(84, 43, 129).
Aa
White text reads best on this color (10.29:1).
About this color
#542B81 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.139 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.047 away. White text reads best on it, at 10.29:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #542B81 |
| RGB | rgb(84, 43, 129) |
| HSL | hsl(269, 50%, 34%) |
| OKLCH | oklch(38.9% 0.139 302.2) |
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 #542B81 | 10.29:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #542B81 | 2.03:1 | Fails | Lc 10.5 | Not readable |
| #542B81 text on white | 10.29:1 | AAA | Lc 93.4 | Preferred for body text |
| #542B81 text on black | 2.03:1 | Fails | Lc -9.1 | 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EDE5FB
oklch(93.5% 0.031 302.3)
-
Step 200
200
#E0D1FA
oklch(88.6% 0.058 301.9)
-
Step 300
300
#CDB1F9
oklch(81% 0.104 302)
-
Step 400
400
#B584F6
oklch(70.8% 0.167 302.2)
-
Step 500
500
#A45FF2
oklch(63.2% 0.213 302.3)
-
Step 600
600
#903EE0
oklch(55.7% 0.231 302.4)
-
Step 700
700
#7A2DC3
oklch(49.1% 0.216 302.1)
-
Step 800
800
#63289E
oklch(42.7% 0.179 301.9)
-
Step 900
900 (this color)
#542B81
oklch(38.9% 0.139 302.2)
-
Step 950
950
#2F1849
oklch(26.9% 0.088 302.5)
#542B81 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) | #004084 | 0.107 |
| Deuteranopia (no green cones) | #0B407F | 0.103 |
| Tritanopia (no blue cones) | #4B3E52 | 0.103 |
| Achromatopsia (no color) | #404040 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542B81
#542B81
oklch(38.9% 0.139 302.2)
- #3C4C00
#3C4C00
oklch(38.9% 0.095 122.4)
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 #542B81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.047
- Rebecca Purple #663399 ΔE 0.055
- Blueberry #464196 ΔE 0.063
- Indigo #4B0082 ΔE 0.064
- Royal Purple #4B006E ΔE 0.076
- Chrysanthemum #560BAD ΔE 0.081
- Imperial Purple #480CA8 ΔE 0.082
- Grape Purple #5D1451 ΔE 0.091
Use #542B81 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.