#55405B
Closest named color: Purple Brown (#673A3F). oklch(40.5% 0.052 318.6), rgb(85, 64, 91).
Aa
White text reads best on this color (9.24:1).
About this color
#55405B is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.052 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.054 away. White text reads best on it, at 9.24:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #55405B |
| RGB | rgb(85, 64, 91) |
| HSL | hsl(287, 17%, 30%) |
| OKLCH | oklch(40.5% 0.052 318.6) |
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 #55405B | 9.24:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #55405B | 2.27:1 | Fails | Lc 12.7 | Not readable |
| #55405B text on white | 9.24:1 | AAA | Lc 91.3 | Preferred for body text |
| #55405B text on black | 2.27:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F7F5F7
oklch(97.2% 0.003 325.6)
-
Step 100
100
#ECE8EE
oklch(93.6% 0.009 314.8)
-
Step 200
200
#DED6E0
oklch(88.5% 0.016 319.4)
-
Step 300
300
#C9BBCD
oklch(80.9% 0.029 318.7)
-
Step 400
400
#AE97B4
oklch(70.6% 0.049 319.2)
-
Step 500
500
#9A7EA2
oklch(63.2% 0.062 318.6)
-
Step 600
600
#84678D
oklch(55.6% 0.067 318.1)
-
Step 700
700
#705578
oklch(49.1% 0.064 318.4)
-
Step 800
800 (this color)
#55405B
oklch(40.5% 0.052 318.6)
-
Step 900
900
#4B3B4F
oklch(37.7% 0.039 319.5)
-
Step 950
950
#2C232F
oklch(27.2% 0.025 317.6)
#55405B 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) | #3D465C | 0.042 |
| Deuteranopia (no green cones) | #41485A | 0.040 |
| Tritanopia (no blue cones) | #55434A | 0.033 |
| Achromatopsia (no color) | #474747 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55405B
#55405B
oklch(40.5% 0.052 318.6)
- #3B5034
#3B5034
oklch(40.5% 0.052 138)
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 #55405B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.064
- Brownish Purple #76424E ΔE 0.067
- Dark Grey Blue #29465B ΔE 0.068
- Dusty Grape #545775 ΔE 0.070
- Dusk #4E5481 ΔE 0.074
- Charcoal #264653 ΔE 0.075
- Onyx #343A40 ΔE 0.077
Use #55405B 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.