#583981
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.118 301.3), rgb(88, 57, 129).
Aa
White text reads best on this color (9.06:1).
About this color
#583981 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.118 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 9.06:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #583981 |
| RGB | rgb(88, 57, 129) |
| HSL | hsl(266, 39%, 36%) |
| OKLCH | oklch(41.6% 0.118 301.3) |
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 #583981 | 9.06:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #583981 | 2.31:1 | Fails | Lc 13.4 | Not readable |
| #583981 text on white | 9.06:1 | AAA | Lc 90.6 | Preferred for body text |
| #583981 text on black | 2.31:1 | Fails | Lc -11.7 | 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
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C8B7E7
oklch(81% 0.069 301.1)
-
Step 400
400
#AD90DA
oklch(70.7% 0.11 301.7)
-
Step 500
500
#9973D0
oklch(63.2% 0.14 301.4)
-
Step 600
600
#8459BD
oklch(55.6% 0.153 301.5)
-
Step 700
700
#7048A3
oklch(49% 0.143 301.6)
-
Step 800
800 (this color)
#583981
oklch(41.6% 0.118 301.3)
-
Step 900
900
#4A346A
oklch(37.6% 0.092 300.9)
-
Step 950
950
#2C1F3E
oklch(27.1% 0.058 302)
#583981 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) | #1E4883 | 0.086 |
| Deuteranopia (no green cones) | #28487F | 0.079 |
| Tritanopia (no blue cones) | #504757 | 0.090 |
| Achromatopsia (no color) | #494949 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583981
#583981
oklch(41.6% 0.118 301.3)
- #445400
#445400
oklch(41.7% 0.101 121.5)
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 #583981, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Blueberry #464196 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.049
- Twilight #4E518B ΔE 0.064
- Dusk #4E5481 ΔE 0.074
- Cobalt #1E488F ΔE 0.086
- Dusty Grape #545775 ΔE 0.090
- Dusk Blue #26538D ΔE 0.091
Use #583981 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.