#573487
Closest named color: Dark Slate Blue (#483D8B). oklch(41.1% 0.134 300), rgb(87, 52, 135).
Aa
White text reads best on this color (9.34:1).
About this color
#573487 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.134 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 9.34:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #573487 |
| RGB | rgb(87, 52, 135) |
| HSL | hsl(265, 44%, 37%) |
| OKLCH | oklch(41.1% 0.134 300) |
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 #573487 | 9.34:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #573487 | 2.24:1 | Fails | Lc 12.7 | Not readable |
| #573487 text on white | 9.34:1 | AAA | Lc 91.2 | Preferred for body text |
| #573487 text on black | 2.24:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DDD3F2
oklch(88.4% 0.043 300.2)
-
Step 300
300
#C8B6EC
oklch(81% 0.077 299.9)
-
Step 400
400
#AD8EE3
oklch(70.8% 0.125 300)
-
Step 500
500
#996FDB
oklch(63.1% 0.16 299.8)
-
Step 600
600
#8554C8
oklch(55.6% 0.174 300.3)
-
Step 700
700
#7044AD
oklch(49.1% 0.162 299.7)
-
Step 800
800 (this color)
#573487
oklch(41.1% 0.134 300)
-
Step 900
900
#4B3270
oklch(37.8% 0.104 300.1)
-
Step 950
950
#2C1E42
oklch(27.1% 0.066 300)
#573487 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) | #03468A | 0.101 |
| Deuteranopia (no green cones) | #184685 | 0.093 |
| Tritanopia (no blue cones) | #4D4558 | 0.101 |
| Achromatopsia (no color) | #474747 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573487
#573487
oklch(41.1% 0.134 300)
- #445200
#445200
oklch(41.2% 0.098 120.3)
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 #573487, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Rebecca Purple #663399 ΔE 0.040
- Blueberry #464196 ΔE 0.046
- Twilight #4E518B ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.083
- Indigo #4B0082 ΔE 0.085
- Dusk #4E5481 ΔE 0.087
- Imperial Purple #480CA8 ΔE 0.088
Use #573487 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.