#583366
Closest named color: Grape Purple (#5D1451). oklch(38.9% 0.094 316.2), rgb(88, 51, 102).
Aa
White text reads best on this color (10.09:1).
About this color
#583366 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.094 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.069 away. White text reads best on it, at 10.09:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #583366 |
| RGB | rgb(88, 51, 102) |
| HSL | hsl(284, 33%, 30%) |
| OKLCH | oklch(38.9% 0.094 316.2) |
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 #583366 | 10.09:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #583366 | 2.08:1 | Fails | Lc 10.7 | Not readable |
| #583366 text on white | 10.09:1 | AAA | Lc 93.2 | Preferred for body text |
| #583366 text on black | 2.08:1 | Fails | Lc -9.3 | 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 900.
-
Step 50
50
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F3
oklch(93.6% 0.02 315.7)
-
Step 200
200
#E4D2EB
oklch(88.6% 0.039 316.6)
-
Step 300
300
#D3B3E0
oklch(80.9% 0.071 316.1)
-
Step 400
400
#BC8AD0
oklch(70.6% 0.113 316)
-
Step 500
500
#AB6BC3
oklch(63% 0.144 316.3)
-
Step 600
600
#9651B0
oklch(55.6% 0.157 316)
-
Step 700
700
#804197
oklch(49.1% 0.146 316.2)
-
Step 800
800
#68367A
oklch(42.6% 0.12 316.4)
-
Step 900
900 (this color)
#583366
oklch(38.9% 0.094 316.2)
-
Step 950
950
#321C3A
oklch(27% 0.061 316.6)
#583366 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) | #293F68 | 0.081 |
| Deuteranopia (no green cones) | #344365 | 0.073 |
| Tritanopia (no blue cones) | #573A47 | 0.062 |
| Achromatopsia (no color) | #424242 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583366
#583366
oklch(38.9% 0.094 316.2)
- #2C5018
#2C5018
oklch(39% 0.094 136.2)
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 #583366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.069
- Purple Brown #673A3F ΔE 0.081
- Rich Purple #720058 ΔE 0.087
- Velvet #750851 ΔE 0.087
- Blueberry #464196 ΔE 0.088
- Rebecca Purple #663399 ΔE 0.088
- Brownish Purple #76424E ΔE 0.092
Use #583366 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.