#583B6D
Closest named color: Dark Slate Blue (#483D8B). oklch(40.8% 0.088 309.7), rgb(88, 59, 109).
Aa
White text reads best on this color (9.28:1).
About this color
#583B6D is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.088 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.057 away. White text reads best on it, at 9.28:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.26:1 |
| White text | 9.28:1 |
Values
| HEX | #583B6D |
| RGB | rgb(88, 59, 109) |
| HSL | hsl(275, 30%, 33%) |
| OKLCH | oklch(40.8% 0.088 309.7) |
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 #583B6D | 9.28:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #583B6D | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #583B6D text on white | 9.28:1 | AAA | Lc 91.3 | Preferred for body text |
| #583B6D text on black | 2.26:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#DFD4E8
oklch(88.5% 0.03 310.1)
-
Step 300
300
#CBB8DA
oklch(80.9% 0.051 310.2)
-
Step 400
400
#B093C7
oklch(70.8% 0.081 309.7)
-
Step 500
500
#9D77B9
oklch(63.1% 0.105 310)
-
Step 600
600
#875FA5
oklch(55.6% 0.114 309.4)
-
Step 700
700
#734E8D
oklch(49.1% 0.106 310.1)
-
Step 800
800 (this color)
#583B6D
oklch(40.8% 0.088 309.7)
-
Step 900
900
#4D375D
oklch(37.8% 0.068 310)
-
Step 950
950
#2D2036
oklch(26.9% 0.044 310.7)
#583B6D 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) | #30466F | 0.068 |
| Deuteranopia (no green cones) | #37486C | 0.062 |
| Tritanopia (no blue cones) | #55434E | 0.064 |
| Achromatopsia (no color) | #474747 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583B6D
#583B6D
oklch(40.8% 0.088 309.7)
- #3A531A
#3A531A
oklch(40.8% 0.088 129.7)
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 #583B6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.057
- Twilight #4E518B ΔE 0.070
- Dusk #4E5481 ΔE 0.071
- Blueberry #464196 ΔE 0.074
- Dusty Grape #545775 ΔE 0.078
- Rebecca Purple #663399 ΔE 0.081
- Purple Brown #673A3F ΔE 0.082
- Brownish Purple #76424E ΔE 0.085
Use #583B6D 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.