#583D80
Closest named color: Dark Slate Blue (#483D8B). oklch(42.3% 0.11 300.4), rgb(88, 61, 128).
Aa
White text reads best on this color (8.77:1).
About this color
#583D80 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.110 and its hue 300°. 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 8.77:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.39:1 |
| White text | 8.77:1 |
Values
| HEX | #583D80 |
| RGB | rgb(88, 61, 128) |
| HSL | hsl(264, 35%, 37%) |
| OKLCH | oklch(42.3% 0.11 300.4) |
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 #583D80 | 8.77:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #583D80 | 2.39:1 | Fails | Lc 14.1 | Not readable |
| #583D80 text on white | 8.77:1 | AAA | Lc 89.8 | Fine for body text |
| #583D80 text on black | 2.39:1 | Fails | Lc -12.4 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DCD4EE
oklch(88.4% 0.036 299.7)
-
Step 300
300
#C7B8E5
oklch(81% 0.065 300.2)
-
Step 400
400
#AB92D7
oklch(70.8% 0.102 300.5)
-
Step 500
500
#9775CC
oklch(63.1% 0.131 300.7)
-
Step 600
600
#815CB9
oklch(55.5% 0.143 300.2)
-
Step 700
700
#6E4BA0
oklch(49.1% 0.134 300.6)
-
Step 800
800 (this color)
#583D80
oklch(42.3% 0.11 300.4)
-
Step 900
900
#493668
oklch(37.8% 0.085 299.9)
-
Step 950
950
#2B203D
oklch(27.1% 0.054 300.3)
#583D80 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) | #264A82 | 0.076 |
| Deuteranopia (no green cones) | #2E4A7E | 0.070 |
| Tritanopia (no blue cones) | #504A58 | 0.086 |
| Achromatopsia (no color) | #4B4B4B | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583D80
#583D80
oklch(42.3% 0.11 300.4)
- #475500
#475500
oklch(42.2% 0.1 120)
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 #583D80, 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
- Blueberry #464196 ΔE 0.047
- Rebecca Purple #663399 ΔE 0.054
- Twilight #4E518B ΔE 0.054
- Dusk #4E5481 ΔE 0.064
- Dusty Grape #545775 ΔE 0.080
- Cobalt #1E488F ΔE 0.083
- Dusk Blue #26538D ΔE 0.085
Use #583D80 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.