#55409B
Closest named color: Blueberry (#464196). oklch(44.4% 0.142 290), rgb(85, 64, 155).
Aa
White text reads best on this color (8.09:1).
About this color
#55409B is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.142 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.026 away. White text reads best on it, at 8.09:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.59:1 |
| White text | 8.09:1 |
Values
| HEX | #55409B |
| RGB | rgb(85, 64, 155) |
| HSL | hsl(254, 42%, 43%) |
| OKLCH | oklch(44.4% 0.142 290) |
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 #55409B | 8.09:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #55409B | 2.59:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #55409B text on white | 8.09:1 | AAA | Lc 87.7 | Fine for body text |
| #55409B text on black | 2.59:1 | Fails | Lc -14.4 | 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 800.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#BFB8F3
oklch(80.9% 0.083 289.8)
-
Step 400
400
#A091ED
oklch(70.7% 0.133 290.1)
-
Step 500
500
#8A73E7
oklch(63.1% 0.169 289.8)
-
Step 600
600
#7658D5
oklch(55.6% 0.184 290.2)
-
Step 700
700
#6347B9
oklch(49.1% 0.172 289.9)
-
Step 800
800 (this color)
#55409B
oklch(44.4% 0.142 290)
-
Step 900
900
#423477
oklch(37.7% 0.11 289.7)
-
Step 950
950
#271F46
oklch(27.1% 0.07 290.3)
#55409B 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) | #02519E | 0.086 |
| Deuteranopia (no green cones) | #094E99 | 0.084 |
| Tritanopia (no blue cones) | #405467 | 0.116 |
| Achromatopsia (no color) | #505050 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55409B
#55409B
oklch(44.4% 0.142 290)
- #575800
#575800
oklch(44.5% 0.097 110.5)
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 #55409B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.026
- Dark Slate Blue #483D8B ΔE 0.035
- Rebecca Purple #663399 ΔE 0.040
- Twilight #4E518B ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.073
- Dusk #4E5481 ΔE 0.074
- Cobalt #1E488F ΔE 0.077
Use #55409B 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.