#542A8A
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.152 299.4), rgb(84, 42, 138).
Aa
White text reads best on this color (10.11:1).
About this color
#542A8A is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.152 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.046 away. White text reads best on it, at 10.11:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #542A8A |
| RGB | rgb(84, 42, 138) |
| HSL | hsl(266, 53%, 35%) |
| OKLCH | oklch(39.5% 0.152 299.4) |
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 #542A8A | 10.11:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #542A8A | 2.07:1 | Fails | Lc 11.0 | Not readable |
| #542A8A text on white | 10.11:1 | AAA | Lc 92.9 | Preferred for body text |
| #542A8A text on black | 2.07:1 | Fails | Lc -9.6 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FD
oklch(93.5% 0.033 300.9)
-
Step 200
200
#DFD1FE
oklch(88.6% 0.063 299.3)
-
Step 300
300
#CBB0FF
oklch(80.9% 0.113 299.6)
-
Step 400
400
#B282FF
oklch(70.7% 0.18 299.5)
-
Step 500
500
#A15AFE
oklch(63% 0.232 299.5)
-
Step 600
600
#8D36EE
oklch(55.7% 0.253 299.2)
-
Step 700
700
#7824CF
oklch(49.1% 0.235 299.2)
-
Step 800
800
#6222A7
oklch(42.7% 0.195 299.6)
-
Step 900
900 (this color)
#542A8A
oklch(39.5% 0.152 299.4)
-
Step 950
950
#2E174E
oklch(27% 0.097 299)
#542A8A 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) | #00418D | 0.106 |
| Deuteranopia (no green cones) | #004188 | 0.107 |
| Tritanopia (no blue cones) | #484156 | 0.116 |
| Achromatopsia (no color) | #424242 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #542A8A
#542A8A
oklch(39.5% 0.152 299.4)
- #414D00
#414D00
oklch(39.6% 0.093 119.4)
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 #542A8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.046
- Rebecca Purple #663399 ΔE 0.047
- Blueberry #464196 ΔE 0.058
- Indigo #4B0082 ΔE 0.063
- Chrysanthemum #560BAD ΔE 0.066
- Imperial Purple #480CA8 ΔE 0.068
- Royal Purple #4B006E ΔE 0.081
- Indigo Blue #3A18B1 ΔE 0.089
Use #542A8A 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.