#57328C
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.143 298.9), rgb(87, 50, 140).
Aa
White text reads best on this color (9.37:1).
About this color
#57328C is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.143 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 0.035 away. White text reads best on it, at 9.37:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.24:1 |
| White text | 9.37:1 |
Values
| HEX | #57328C |
| RGB | rgb(87, 50, 140) |
| HSL | hsl(265, 47%, 37%) |
| OKLCH | oklch(41.2% 0.143 298.9) |
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 #57328C | 9.37:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #57328C | 2.24:1 | Fails | Lc 12.7 | Not readable |
| #57328C text on white | 9.37:1 | AAA | Lc 91.2 | Preferred for body text |
| #57328C 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
#ECE7F8
oklch(93.7% 0.023 299.4)
-
Step 200
200
#DDD3F4
oklch(88.5% 0.046 299.3)
-
Step 300
300
#C8B5F0
oklch(80.9% 0.084 299.3)
-
Step 400
400
#AC8DE8
oklch(70.8% 0.133 298.6)
-
Step 500
500
#996DE1
oklch(63.1% 0.171 298.9)
-
Step 600
600
#8452CF
oklch(55.7% 0.186 298.6)
-
Step 700
700
#7041B3
oklch(49.1% 0.173 298.8)
-
Step 800
800 (this color)
#57328C
oklch(41.2% 0.143 298.9)
-
Step 900
900
#4B3074
oklch(37.7% 0.113 299.2)
-
Step 950
950
#2C1D44
oklch(27.1% 0.071 299.4)
#57328C 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) | #00468F | 0.103 |
| Deuteranopia (no green cones) | #09468A | 0.101 |
| Tritanopia (no blue cones) | #4B465A | 0.110 |
| Achromatopsia (no color) | #464646 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57328C
#57328C
oklch(41.2% 0.143 298.9)
- #465100
#465100
oklch(41.1% 0.096 118.3)
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 #57328C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Rebecca Purple #663399 ΔE 0.035
- Blueberry #464196 ΔE 0.046
- Chrysanthemum #560BAD ΔE 0.074
- Twilight #4E518B ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.079
- Indigo #4B0082 ΔE 0.081
- Cobalt #1E488F ΔE 0.091
Use #57328C 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.