#542B74
Closest named color: Dark Slate Blue (#483D8B). oklch(38% 0.123 307.4), rgb(84, 43, 116).
Aa
White text reads best on this color (10.63:1).
About this color
#542B74 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.123 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 0.058 away. White text reads best on it, at 10.63:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.97:1 |
| White text | 10.63:1 |
Values
| HEX | #542B74 |
| RGB | rgb(84, 43, 116) |
| HSL | hsl(274, 46%, 31%) |
| OKLCH | oklch(38% 0.123 307.4) |
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 #542B74 | 10.63:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #542B74 | 1.97:1 | Fails | Lc 9.7 | Not readable |
| #542B74 text on white | 10.63:1 | AAA | Lc 94.2 | Preferred for body text |
| #542B74 text on black | 1.97:1 | Fails | Lc -8.3 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F8
oklch(93.5% 0.027 309.2)
-
Step 200
200
#E2D1F4
oklch(88.5% 0.051 307.2)
-
Step 300
300
#D1B1F0
oklch(81% 0.093 307.5)
-
Step 400
400
#B985E8
oklch(70.6% 0.149 307.2)
-
Step 500
500
#A863E0
oklch(63.1% 0.188 307.3)
-
Step 600
600
#9445CE
oklch(55.6% 0.206 307.4)
-
Step 700
700
#7E35B2
oklch(49.1% 0.191 307.5)
-
Step 800
800
#662D90
oklch(42.6% 0.158 307.3)
-
Step 900
900 (this color)
#542B74
oklch(38% 0.123 307.4)
-
Step 950
950
#311A43
oklch(27.1% 0.077 308)
#542B74 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) | #0A3D76 | 0.105 |
| Deuteranopia (no green cones) | #1F3F72 | 0.093 |
| Tritanopia (no blue cones) | #4F394B | 0.087 |
| Achromatopsia (no color) | #3E3E3E | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542B74
#542B74
oklch(38% 0.123 307.4)
- #334B00
#334B00
oklch(37.9% 0.098 127.6)
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 #542B74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.058
- Indigo #4B0082 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.072
- Royal Purple #4B006E ΔE 0.072
- Grape Purple #5D1451 ΔE 0.072
- Blueberry #464196 ΔE 0.076
- Plum Purple #4E0550 ΔE 0.089
- Rich Purple #720058 ΔE 0.090
Use #542B74 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.