#583D79
Closest named color: Dark Slate Blue (#483D8B). oklch(41.8% 0.1 303.1), rgb(88, 61, 121).
Aa
White text reads best on this color (8.90:1).
About this color
#583D79 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.100 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.041 away. White text reads best on it, at 8.90:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #583D79 |
| RGB | rgb(88, 61, 121) |
| HSL | hsl(267, 33%, 36%) |
| OKLCH | oklch(41.8% 0.1 303.1) |
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 #583D79 | 8.90:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #583D79 | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #583D79 text on white | 8.90:1 | AAA | Lc 90.2 | Preferred for body text |
| #583D79 text on black | 2.35:1 | Fails | Lc -12.1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DDD4EB
oklch(88.4% 0.033 303.4)
-
Step 300
300
#C8B8E0
oklch(80.9% 0.058 303.3)
-
Step 400
400
#AC92D1
oklch(70.6% 0.094 303)
-
Step 500
500
#9876C5
oklch(63% 0.121 302.9)
-
Step 600
600
#835EB1
oklch(55.6% 0.129 303)
-
Step 700
700
#6F4D98
oklch(49.1% 0.12 303.2)
-
Step 800
800 (this color)
#583D79
oklch(41.8% 0.1 303.1)
-
Step 900
900
#4A3663
oklch(37.6% 0.078 303.4)
-
Step 950
950
#2B203A
oklch(26.9% 0.049 302.7)
#583D79 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) | #2C497B | 0.071 |
| Deuteranopia (no green cones) | #324A77 | 0.066 |
| Tritanopia (no blue cones) | #524855 | 0.077 |
| Achromatopsia (no color) | #4A4A4A | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583D79
#583D79
oklch(41.8% 0.1 303.1)
- #425504
#425504
oklch(41.8% 0.101 123.4)
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 #583D79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.056
- Twilight #4E518B ΔE 0.057
- Dusk #4E5481 ΔE 0.063
- Rebecca Purple #663399 ΔE 0.064
- Dusty Grape #545775 ΔE 0.076
- Cobalt #1E488F ΔE 0.087
- Dusk Blue #26538D ΔE 0.087
Use #583D79 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.