#582D75
Closest named color: Dark Slate Blue (#483D8B). oklch(38.8% 0.123 309.4), rgb(88, 45, 117).
Aa
White text reads best on this color (10.25:1).
About this color
#582D75 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.123 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.056 away. White text reads best on it, at 10.25:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #582D75 |
| RGB | rgb(88, 45, 117) |
| HSL | hsl(276, 44%, 32%) |
| OKLCH | oklch(38.8% 0.123 309.4) |
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 #582D75 | 10.25:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #582D75 | 2.04:1 | Fails | Lc 10.5 | Not readable |
| #582D75 text on white | 10.25:1 | AAA | Lc 93.4 | Preferred for body text |
| #582D75 text on black | 2.04:1 | Fails | Lc -9.1 | 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 900.
-
Step 50
50
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F8
oklch(93.5% 0.027 309.2)
-
Step 200
200
#E3D0F3
oklch(88.4% 0.052 309.6)
-
Step 300
300
#D2B1EE
oklch(81% 0.091 309)
-
Step 400
400
#BC85E5
oklch(70.8% 0.147 309.5)
-
Step 500
500
#AB62DD
oklch(63.1% 0.187 309.4)
-
Step 600
600
#9744CB
oklch(55.7% 0.205 309.5)
-
Step 700
700
#8034B0
oklch(49.1% 0.191 309.1)
-
Step 800
800
#682D8E
oklch(42.7% 0.157 309.2)
-
Step 900
900 (this color)
#582D75
oklch(38.8% 0.123 309.4)
-
Step 950
950
#321943
oklch(27% 0.079 309.6)
#582D75 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) | #123F77 | 0.106 |
| Deuteranopia (no green cones) | #244173 | 0.094 |
| Tritanopia (no blue cones) | #543B4C | 0.087 |
| Achromatopsia (no color) | #414141 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #582D75
#582D75
oklch(38.8% 0.123 309.4)
- #324F00
#324F00
oklch(39% 0.104 129.7)
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 #582D75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.056
- Rebecca Purple #663399 ΔE 0.066
- Grape Purple #5D1451 ΔE 0.074
- Blueberry #464196 ΔE 0.074
- Indigo #4B0082 ΔE 0.078
- Royal Purple #4B006E ΔE 0.079
- Rich Purple #720058 ΔE 0.088
- Purple #800080 ΔE 0.093
Use #582D75 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.