#553586
Closest named color: Dark Slate Blue (#483D8B). oklch(41% 0.131 298.7), rgb(85, 53, 134).
Aa
White text reads best on this color (9.37:1).
About this color
#553586 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.131 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 0.029 away. White text reads best on it, at 9.37:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.37:1 |
Values
| HEX | #553586 |
| RGB | rgb(85, 53, 134) |
| HSL | hsl(264, 43%, 37%) |
| OKLCH | oklch(41% 0.131 298.7) |
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 #553586 | 9.37:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #553586 | 2.23:1 | Fails | Lc 12.6 | Not readable |
| #553586 text on white | 9.37:1 | AAA | Lc 91.3 | Preferred for body text |
| #553586 text on black | 2.23:1 | Fails | Lc -11.0 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F2
oklch(88.6% 0.042 297.7)
-
Step 300
300
#C7B6EC
oklch(80.9% 0.077 299.1)
-
Step 400
400
#AB8FE2
oklch(70.7% 0.122 298.8)
-
Step 500
500
#9771DA
oklch(63.2% 0.156 298.6)
-
Step 600
600
#8256C7
oklch(55.5% 0.17 298.7)
-
Step 700
700
#6E46AC
oklch(49.1% 0.157 298.5)
-
Step 800
800 (this color)
#553586
oklch(41% 0.131 298.7)
-
Step 900
900
#49336F
oklch(37.7% 0.101 298.4)
-
Step 950
950
#2B1E41
oklch(26.9% 0.064 299.2)
#553586 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) | #084689 | 0.096 |
| Deuteranopia (no green cones) | #194684 | 0.088 |
| Tritanopia (no blue cones) | #4A4658 | 0.101 |
| Achromatopsia (no color) | #464646 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553586
#553586
oklch(41% 0.131 298.7)
- #455100
#455100
oklch(41% 0.096 119)
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 #553586, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.044
- Rebecca Purple #663399 ΔE 0.044
- Twilight #4E518B ΔE 0.072
- Dusk #4E5481 ΔE 0.085
- Cobalt #1E488F ΔE 0.085
- Chrysanthemum #560BAD ΔE 0.086
- Indigo #4B0082 ΔE 0.086
Use #553586 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.