#583978
Closest named color: Dark Slate Blue (#483D8B). oklch(41% 0.106 304.9), rgb(88, 57, 120).
Aa
White text reads best on this color (9.24:1).
About this color
#583978 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.106 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 9.24:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #583978 |
| RGB | rgb(88, 57, 120) |
| HSL | hsl(270, 36%, 35%) |
| OKLCH | oklch(41% 0.106 304.9) |
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 #583978 | 9.24:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #583978 | 2.27:1 | Fails | Lc 12.9 | Not readable |
| #583978 text on white | 9.24:1 | AAA | Lc 91.1 | Preferred for body text |
| #583978 text on black | 2.27:1 | Fails | Lc -11.2 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DED4EC
oklch(88.5% 0.034 304.5)
-
Step 300
300
#CAB7E1
oklch(80.9% 0.062 305.6)
-
Step 400
400
#AF91D3
oklch(70.8% 0.099 304.8)
-
Step 500
500
#9B74C7
oklch(63.1% 0.127 304.7)
-
Step 600
600
#865BB3
oklch(55.5% 0.138 304.9)
-
Step 700
700
#724B9A
oklch(49.2% 0.127 305)
-
Step 800
800 (this color)
#583978
oklch(41% 0.106 304.9)
-
Step 900
900
#4C3565
oklch(37.8% 0.083 304.8)
-
Step 950
950
#2C1F3B
oklch(26.9% 0.053 304.5)
#583978 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) | #26467A | 0.079 |
| Deuteranopia (no green cones) | #2F4776 | 0.072 |
| Tritanopia (no blue cones) | #534453 | 0.078 |
| Achromatopsia (no color) | #474747 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583978
#583978
oklch(41% 0.106 304.9)
- #3E5300
#3E5300
oklch(41% 0.103 124.7)
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 #583978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Blueberry #464196 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.062
- Twilight #4E518B ΔE 0.067
- Dusk #4E5481 ΔE 0.073
- Dusty Grape #545775 ΔE 0.086
- Cobalt #1E488F ΔE 0.091
- Dusk Blue #26538D ΔE 0.094
Use #583978 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.