#573980
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.117 301), rgb(87, 57, 128).
Aa
White text reads best on this color (9.12:1).
About this color
#573980 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.117 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.12:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.30:1 |
| White text | 9.12:1 |
Values
| HEX | #573980 |
| RGB | rgb(87, 57, 128) |
| HSL | hsl(265, 38%, 36%) |
| OKLCH | oklch(41.4% 0.117 301) |
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 #573980 | 9.12:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #573980 | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #573980 text on white | 9.12:1 | AAA | Lc 90.7 | Preferred for body text |
| #573980 text on black | 2.30:1 | Fails | Lc -11.6 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C8B7E6
oklch(80.9% 0.068 301.4)
-
Step 400
400
#AC90DA
oklch(70.6% 0.11 301)
-
Step 500
500
#9873D0
oklch(63.1% 0.14 300.8)
-
Step 600
600
#835ABD
oklch(55.6% 0.151 300.7)
-
Step 700
700
#6F49A3
oklch(49.1% 0.141 300.8)
-
Step 800
800 (this color)
#573980
oklch(41.4% 0.117 301)
-
Step 900
900
#4A346A
oklch(37.6% 0.092 300.9)
-
Step 950
950
#2B1F3E
oklch(27% 0.058 300.4)
#573980 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) | #1F4882 | 0.084 |
| Deuteranopia (no green cones) | #28487E | 0.077 |
| Tritanopia (no blue cones) | #4F4757 | 0.089 |
| Achromatopsia (no color) | #484848 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573980
#573980
oklch(41.4% 0.117 301)
- #445300
#445300
oklch(41.4% 0.099 120.9)
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 #573980, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.051
- Twilight #4E518B ΔE 0.064
- Dusk #4E5481 ΔE 0.074
- Cobalt #1E488F ΔE 0.085
- Dusty Grape #545775 ΔE 0.090
- Dusk Blue #26538D ΔE 0.090
Use #573980 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.