#583B65
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.077 314.9), rgb(88, 59, 101).
Aa
White text reads best on this color (9.42:1).
About this color
#583B65 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.077 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.069 away. White text reads best on it, at 9.42:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #583B65 |
| RGB | rgb(88, 59, 101) |
| HSL | hsl(281, 26%, 31%) |
| OKLCH | oklch(40.3% 0.077 314.9) |
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 #583B65 | 9.42:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #583B65 | 2.22:1 | Fails | Lc 12.3 | Not readable |
| #583B65 text on white | 9.42:1 | AAA | Lc 91.7 | Preferred for body text |
| #583B65 text on black | 2.22:1 | Fails | Lc -10.7 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EDE7F0
oklch(93.5% 0.014 314.8)
-
Step 200
200
#DFD4E5
oklch(88.4% 0.026 313.9)
-
Step 300
300
#CCB8D5
oklch(80.8% 0.046 315.4)
-
Step 400
400
#B293C0
oklch(70.7% 0.073 315.2)
-
Step 500
500
#9E78B0
oklch(63% 0.092 314.6)
-
Step 600
600
#89619B
oklch(55.6% 0.098 314.9)
-
Step 700
700
#745085
oklch(49.1% 0.092 314.4)
-
Step 800
800 (this color)
#583B65
oklch(40.3% 0.077 314.9)
-
Step 900
900
#4E3858
oklch(37.9% 0.06 314.9)
-
Step 950
950
#2D2133
oklch(27% 0.037 314.2)
#583B65 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) | #344467 | 0.062 |
| Deuteranopia (no green cones) | #3B4764 | 0.057 |
| Tritanopia (no blue cones) | #57414B | 0.053 |
| Achromatopsia (no color) | #464646 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583B65
#583B65
oklch(40.3% 0.077 314.9)
- #365225
#365225
oklch(40.4% 0.078 134.9)
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 #583B65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.069
- Purple Brown #673A3F ΔE 0.070
- Dusk #4E5481 ΔE 0.075
- Brownish Purple #76424E ΔE 0.077
- Twilight #4E518B ΔE 0.078
- Dusty Grape #545775 ΔE 0.078
- Dark Grey Blue #29465B ΔE 0.082
- Charcoal Grey #3C4142 ΔE 0.085
Use #583B65 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.