#55405C
Closest named color: Purple Brown (#673A3F). oklch(40.5% 0.053 317.5), rgb(85, 64, 92).
Aa
White text reads best on this color (9.23:1).
About this color
#55405C is a dark, muted purple. In OKLCH its lightness is 41%, its chroma 0.053 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.055 away. White text reads best on it, at 9.23:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.27:1 |
| White text | 9.23:1 |
Values
| HEX | #55405C |
| RGB | rgb(85, 64, 92) |
| HSL | hsl(285, 18%, 31%) |
| OKLCH | oklch(40.5% 0.053 317.5) |
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 #55405C | 9.23:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #55405C | 2.27:1 | Fails | Lc 12.7 | Not readable |
| #55405C text on white | 9.23:1 | AAA | Lc 91.3 | Preferred for body text |
| #55405C 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
#DED6E1
oklch(88.6% 0.017 316.9)
-
Step 300
300
#C9BBCE
oklch(80.9% 0.03 317.2)
-
Step 400
400
#AE97B5
oklch(70.7% 0.05 318.3)
-
Step 500
500
#9A7EA3
oklch(63.2% 0.063 317.9)
-
Step 600
600
#84678E
oklch(55.7% 0.068 317.3)
-
Step 700
700
#705579
oklch(49.1% 0.065 317.5)
-
Step 800
800 (this color)
#55405C
oklch(40.5% 0.053 317.5)
-
Step 900
900
#4B3B50
oklch(37.8% 0.041 318)
-
Step 950
950
#2C222F
oklch(26.9% 0.028 318.3)
#55405C 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) | #3C465D | 0.043 |
| Deuteranopia (no green cones) | #41485B | 0.040 |
| Tritanopia (no blue cones) | #55434A | 0.035 |
| Achromatopsia (no color) | #474747 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55405C
#55405C
oklch(40.5% 0.053 317.5)
- #3B5033
#3B5033
oklch(40.5% 0.054 137.3)
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 #55405C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.065
- Brownish Purple #76424E ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.068
- Dusty Grape #545775 ΔE 0.069
- Dusk #4E5481 ΔE 0.073
- Charcoal #264653 ΔE 0.076
- Onyx #343A40 ΔE 0.078
Use #55405C 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.