#583E66
Closest named color: Dusk (#4E5481). oklch(41% 0.072 313.2), rgb(88, 62, 102).
Aa
White text reads best on this color (9.14:1).
About this color
#583E66 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.072 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.068 away. White text reads best on it, at 9.14:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #583E66 |
| RGB | rgb(88, 62, 102) |
| HSL | hsl(279, 24%, 32%) |
| OKLCH | oklch(41% 0.072 313.2) |
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 #583E66 | 9.14:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #583E66 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #583E66 text on white | 9.14:1 | AAA | Lc 91.0 | Preferred for body text |
| #583E66 text on black | 2.29:1 | Fails | Lc -11.4 | 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
#EDE8F0
oklch(93.7% 0.012 313.2)
-
Step 200
200
#DFD5E4
oklch(88.5% 0.023 314.7)
-
Step 300
300
#CAB9D4
oklch(80.8% 0.042 313.1)
-
Step 400
400
#B095BF
oklch(70.8% 0.067 313.4)
-
Step 500
500
#9C7AAF
oklch(63.1% 0.086 313.1)
-
Step 600
600
#87629A
oklch(55.6% 0.094 313.7)
-
Step 700
700
#725184
oklch(49.1% 0.088 313.1)
-
Step 800
800 (this color)
#583E66
oklch(41% 0.072 313.2)
-
Step 900
900
#4C3957
oklch(37.8% 0.055 312.7)
-
Step 950
950
#2D2133
oklch(27% 0.037 314.2)
#583E66 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) | #374768 | 0.057 |
| Deuteranopia (no green cones) | #3D4965 | 0.053 |
| Tritanopia (no blue cones) | #57434D | 0.049 |
| Achromatopsia (no color) | #484848 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583E66
#583E66
oklch(41% 0.072 313.2)
- #3A5328
#3A5328
oklch(41% 0.073 133.5)
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 #583E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.068
- Purple Brown #673A3F ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.069
- Dusty Grape #545775 ΔE 0.070
- Twilight #4E518B ΔE 0.072
- Brownish Purple #76424E ΔE 0.074
- Dark Grey Blue #29465B ΔE 0.079
- YInMn Blue #415A77 ΔE 0.083
Use #583E66 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.