#583B8A
Closest named color: Dark Slate Blue (#483D8B). oklch(42.6% 0.127 297.7), rgb(88, 59, 138).
Aa
White text reads best on this color (8.72:1).
About this color
#583B8A is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.127 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.028 away. White text reads best on it, at 8.72:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #583B8A |
| RGB | rgb(88, 59, 138) |
| HSL | hsl(262, 40%, 39%) |
| OKLCH | oklch(42.6% 0.127 297.7) |
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 #583B8A | 8.72:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #583B8A | 2.40:1 | Fails | Lc 14.4 | Not readable |
| #583B8A text on white | 8.72:1 | AAA | Lc 89.6 | Fine for body text |
| #583B8A text on black | 2.40:1 | Fails | Lc -12.6 | 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
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F2
oklch(88.6% 0.042 297.7)
-
Step 300
300
#C6B7EB
oklch(80.9% 0.074 297.9)
-
Step 400
400
#A990E1
oklch(70.7% 0.118 297.5)
-
Step 500
500
#9572D8
oklch(63% 0.151 297.7)
-
Step 600
600
#8058C6
oklch(55.6% 0.165 297.5)
-
Step 700
700
#6D47AB
oklch(49.1% 0.154 298)
-
Step 800
800 (this color)
#583B8A
oklch(42.6% 0.127 297.7)
-
Step 900
900
#48346F
oklch(37.8% 0.099 297.1)
-
Step 950
950
#2A1F41
oklch(27% 0.062 297)
#583B8A 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) | #174B8D | 0.088 |
| Deuteranopia (no green cones) | #214A88 | 0.082 |
| Tritanopia (no blue cones) | #4D4B5C | 0.099 |
| Achromatopsia (no color) | #4B4B4B | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583B8A
#583B8A
oklch(42.6% 0.127 297.7)
- #4B5500
#4B5500
oklch(42.6% 0.098 117.3)
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 #583B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.028
- Blueberry #464196 ΔE 0.037
- Rebecca Purple #663399 ΔE 0.039
- Twilight #4E518B ΔE 0.058
- Dusk #4E5481 ΔE 0.072
- Cobalt #1E488F ΔE 0.082
- Dusk Blue #26538D ΔE 0.087
- Denim Blue #3B5B92 ΔE 0.090
Use #583B8A 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.