#583B6C
Closest named color: Dark Slate Blue (#483D8B). oklch(40.7% 0.086 310.3), rgb(88, 59, 108).
Aa
White text reads best on this color (9.30:1).
About this color
#583B6C is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.086 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 0.059 away. White text reads best on it, at 9.30:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #583B6C |
| RGB | rgb(88, 59, 108) |
| HSL | hsl(276, 29%, 33%) |
| OKLCH | oklch(40.7% 0.086 310.3) |
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 #583B6C | 9.30:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #583B6C | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #583B6C text on white | 9.30:1 | AAA | Lc 91.3 | Preferred for body text |
| #583B6C text on black | 2.25:1 | Fails | Lc -11.0 | 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
#DFD4E7
oklch(88.4% 0.028 311.3)
-
Step 300
300
#CBB8D9
oklch(80.9% 0.05 310.9)
-
Step 400
400
#B093C6
oklch(70.7% 0.079 310.2)
-
Step 500
500
#9D77B8
oklch(63.1% 0.104 310.4)
-
Step 600
600
#885FA4
oklch(55.6% 0.113 310.5)
-
Step 700
700
#734E8C
oklch(49% 0.104 310.5)
-
Step 800
800 (this color)
#583B6C
oklch(40.7% 0.086 310.3)
-
Step 900
900
#4D375C
oklch(37.8% 0.067 310.7)
-
Step 950
950
#2D2036
oklch(26.9% 0.044 310.7)
#583B6C 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) | #31466E | 0.067 |
| Deuteranopia (no green cones) | #38476B | 0.060 |
| Tritanopia (no blue cones) | #56424E | 0.061 |
| Achromatopsia (no color) | #474747 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583B6C
#583B6C
oklch(40.7% 0.086 310.3)
- #39531C
#39531C
oklch(40.8% 0.087 130.7)
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 #583B6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.059
- Twilight #4E518B ΔE 0.071
- Dusk #4E5481 ΔE 0.071
- Blueberry #464196 ΔE 0.075
- Dusty Grape #545775 ΔE 0.078
- Purple Brown #673A3F ΔE 0.081
- Rebecca Purple #663399 ΔE 0.082
- Brownish Purple #76424E ΔE 0.084
Use #583B6C 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.