#553559
Closest named color: Purple Brown (#673A3F). oklch(38.2% 0.072 322.9), rgb(85, 53, 89).
Aa
White text reads best on this color (10.29:1).
About this color
#553559 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.072 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.063 away. White text reads best on it, at 10.29:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #553559 |
| RGB | rgb(85, 53, 89) |
| HSL | hsl(293, 25%, 28%) |
| OKLCH | oklch(38.2% 0.072 322.9) |
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 #553559 | 10.29:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #553559 | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #553559 text on white | 10.29:1 | AAA | Lc 93.8 | Preferred for body text |
| #553559 text on black | 2.03:1 | Fails | Lc -8.8 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EFE7F0
oklch(93.7% 0.015 322.3)
-
Step 200
200
#E3D3E5
oklch(88.5% 0.03 322.4)
-
Step 300
300
#D2B5D5
oklch(80.8% 0.055 323.1)
-
Step 400
400
#BB8FC0
oklch(70.8% 0.085 323)
-
Step 500
500
#A972B0
oklch(63.1% 0.11 322.8)
-
Step 600
600
#94599C
oklch(55.6% 0.12 322.6)
-
Step 700
700
#7E4985
oklch(49.1% 0.111 322.8)
-
Step 800
800
#673C6C
oklch(42.7% 0.093 323.2)
-
Step 900
900 (this color)
#553559
oklch(38.2% 0.072 322.9)
-
Step 950
950
#311F33
oklch(27.1% 0.044 323.2)
#553559 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) | #313E5A | 0.065 |
| Deuteranopia (no green cones) | #394258 | 0.059 |
| Tritanopia (no blue cones) | #563943 | 0.043 |
| Achromatopsia (no color) | #404040 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553559
#553559
oklch(38.2% 0.072 322.9)
- #2A4C28
#2A4C28
oklch(38% 0.072 142.8)
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 #553559, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.063
- Grape Purple #5D1451 ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.076
- Onyx #343A40 ΔE 0.079
- Dark Grey Blue #29465B ΔE 0.081
- Brownish Purple #76424E ΔE 0.083
- Dark Slate Blue #483D8B ΔE 0.086
- Charcoal #264653 ΔE 0.089
Use #553559 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.