#583C68
Closest named color: Dark Slate Blue (#483D8B). oklch(40.7% 0.079 312.5), rgb(88, 60, 104).
Aa
White text reads best on this color (9.28:1).
About this color
#583C68 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.079 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.065 away. White text reads best on it, at 9.28:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.26:1 |
| White text | 9.28:1 |
Values
| HEX | #583C68 |
| RGB | rgb(88, 60, 104) |
| HSL | hsl(278, 27%, 32%) |
| OKLCH | oklch(40.7% 0.079 312.5) |
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 #583C68 | 9.28:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #583C68 | 2.26:1 | Fails | Lc 12.6 | Not readable |
| #583C68 text on white | 9.28:1 | AAA | Lc 91.3 | Preferred for body text |
| #583C68 text on black | 2.26:1 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EDE7F0
oklch(93.5% 0.014 314.8)
-
Step 200
200
#DFD5E6
oklch(88.6% 0.025 311.7)
-
Step 300
300
#CBB9D7
oklch(81% 0.046 311.9)
-
Step 400
400
#B094C2
oklch(70.7% 0.073 312)
-
Step 500
500
#9D78B3
oklch(63% 0.096 312.4)
-
Step 600
600
#88619E
oklch(55.7% 0.102 312.7)
-
Step 700
700
#735087
oklch(49.1% 0.094 312.5)
-
Step 800
800 (this color)
#583C68
oklch(40.7% 0.079 312.5)
-
Step 900
900
#4D3859
oklch(37.8% 0.061 312.7)
-
Step 950
950
#2D2134
oklch(27.1% 0.038 312.6)
#583C68 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) | #34466A | 0.062 |
| Deuteranopia (no green cones) | #3B4867 | 0.057 |
| Tritanopia (no blue cones) | #57424D | 0.054 |
| Achromatopsia (no color) | #474747 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583C68
#583C68
oklch(40.7% 0.079 312.5)
- #395223
#395223
oklch(40.6% 0.078 132.2)
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 #583C68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.065
- Dusk #4E5481 ΔE 0.071
- Purple Brown #673A3F ΔE 0.073
- Twilight #4E518B ΔE 0.073
- Dusty Grape #545775 ΔE 0.075
- Brownish Purple #76424E ΔE 0.079
- Blueberry #464196 ΔE 0.081
- Dark Grey Blue #29465B ΔE 0.083
Use #583C68 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.