#573283
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.132 301.9), rgb(87, 50, 131).
Aa
White text reads best on this color (9.59:1).
About this color
#573283 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.132 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 9.59:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.59:1 |
Values
| HEX | #573283 |
| RGB | rgb(87, 50, 131) |
| HSL | hsl(267, 45%, 35%) |
| OKLCH | oklch(40.5% 0.132 301.9) |
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 #573283 | 9.59:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #573283 | 2.18:1 | Fails | Lc 12.1 | Not readable |
| #573283 text on white | 9.59:1 | AAA | Lc 91.8 | Preferred for body text |
| #573283 text on black | 2.18:1 | Fails | Lc -10.6 | 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
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DED3F1
oklch(88.5% 0.042 302.2)
-
Step 300
300
#C9B5EB
oklch(80.8% 0.078 301.6)
-
Step 400
400
#AF8DE1
oklch(70.7% 0.124 301.9)
-
Step 500
500
#9C6FD8
oklch(63.2% 0.157 301.9)
-
Step 600
600
#8754C5
oklch(55.6% 0.171 301.9)
-
Step 700
700
#7244AA
oklch(49.1% 0.158 301.6)
-
Step 800
800 (this color)
#573283
oklch(40.5% 0.132 301.9)
-
Step 900
900
#4C326E
oklch(37.8% 0.102 301.7)
-
Step 950
950
#2C1E41
oklch(27.1% 0.065 300.6)
#573283 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) | #054486 | 0.103 |
| Deuteranopia (no green cones) | #1B4581 | 0.094 |
| Tritanopia (no blue cones) | #4E4355 | 0.100 |
| Achromatopsia (no color) | #454545 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573283
#573283
oklch(40.5% 0.132 301.9)
- #415100
#415100
oklch(40.6% 0.098 121.8)
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 #573283, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Rebecca Purple #663399 ΔE 0.046
- Blueberry #464196 ΔE 0.052
- Twilight #4E518B ΔE 0.079
- Indigo #4B0082 ΔE 0.081
- Chrysanthemum #560BAD ΔE 0.086
- Imperial Purple #480CA8 ΔE 0.090
- Dusk #4E5481 ΔE 0.091
Use #573283 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.