#583380
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.127 303.4), rgb(88, 51, 128).
Aa
White text reads best on this color (9.54:1).
About this color
#583380 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.127 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.039 away. White text reads best on it, at 9.54:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.54:1 |
Values
| HEX | #583380 |
| RGB | rgb(88, 51, 128) |
| HSL | hsl(269, 43%, 35%) |
| OKLCH | oklch(40.6% 0.127 303.4) |
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 #583380 | 9.54:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #583380 | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #583380 text on white | 9.54:1 | AAA | Lc 91.7 | Preferred for body text |
| #583380 text on black | 2.20:1 | Fails | Lc -10.6 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DED3F0
oklch(88.5% 0.041 302.8)
-
Step 300
300
#CAB5E8
oklch(80.8% 0.074 303.5)
-
Step 400
400
#B08EDD
oklch(70.8% 0.118 303.3)
-
Step 500
500
#9D6FD3
oklch(63% 0.151 303.6)
-
Step 600
600
#8855C1
oklch(55.6% 0.165 303.2)
-
Step 700
700
#7445A6
oklch(49.2% 0.152 303.6)
-
Step 800
800 (this color)
#583380
oklch(40.6% 0.127 303.4)
-
Step 900
900
#4D326C
oklch(37.7% 0.099 303.5)
-
Step 950
950
#2D1E3F
oklch(27.1% 0.062 303.5)
#583380 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) | #114483 | 0.099 |
| Deuteranopia (no green cones) | #21457E | 0.090 |
| Tritanopia (no blue cones) | #514254 | 0.094 |
| Achromatopsia (no color) | #454545 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583380
#583380
oklch(40.6% 0.127 303.4)
- #3F5100
#3F5100
oklch(40.5% 0.099 123.1)
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 #583380, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.039
- Rebecca Purple #663399 ΔE 0.048
- Blueberry #464196 ΔE 0.055
- Twilight #4E518B ΔE 0.078
- Indigo #4B0082 ΔE 0.085
- Dusk #4E5481 ΔE 0.088
- Chrysanthemum #560BAD ΔE 0.092
- Cobalt #1E488F ΔE 0.094
Use #583380 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.