#583881
Closest named color: Dark Slate Blue (#483D8B). oklch(41.5% 0.12 301.6), rgb(88, 56, 129).
Aa
White text reads best on this color (9.13:1).
About this color
#583881 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.120 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.034 away. White text reads best on it, at 9.13:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #583881 |
| RGB | rgb(88, 56, 129) |
| HSL | hsl(266, 39%, 36%) |
| OKLCH | oklch(41.5% 0.12 301.6) |
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 #583881 | 9.13:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #583881 | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #583881 text on white | 9.13:1 | AAA | Lc 90.8 | Preferred for body text |
| #583881 text on black | 2.29:1 | Fails | Lc -11.6 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C8B7E7
oklch(81% 0.069 301.1)
-
Step 400
400
#AD90DB
oklch(70.8% 0.111 301.4)
-
Step 500
500
#9A72D1
oklch(63.1% 0.143 301.9)
-
Step 600
600
#8558BE
oklch(55.6% 0.156 301.9)
-
Step 700
700
#7048A4
oklch(49.1% 0.144 301.3)
-
Step 800
800 (this color)
#583881
oklch(41.5% 0.12 301.6)
-
Step 900
900
#4B346A
oklch(37.8% 0.092 301.8)
-
Step 950
950
#2C1F3E
oklch(27.1% 0.058 302)
#583881 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) | #1C4883 | 0.089 |
| Deuteranopia (no green cones) | #27487F | 0.081 |
| Tritanopia (no blue cones) | #504657 | 0.090 |
| Achromatopsia (no color) | #484848 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583881
#583881
oklch(41.5% 0.12 301.6)
- #435300
#435300
oklch(41.4% 0.1 121.6)
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 #583881, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.034
- Rebecca Purple #663399 ΔE 0.048
- Blueberry #464196 ΔE 0.049
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.076
- Cobalt #1E488F ΔE 0.087
- Dusty Grape #545775 ΔE 0.092
- Dusk Blue #26538D ΔE 0.093
Use #583881 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.