#582779
Closest named color: Dark Slate Blue (#483D8B). oklch(38.3% 0.137 308.8), rgb(88, 39, 121).
Aa
White text reads best on this color (10.59:1).
About this color
#582779 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.137 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.062 away. White text reads best on it, at 10.59:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.59:1 |
Values
| HEX | #582779 |
| RGB | rgb(88, 39, 121) |
| HSL | hsl(276, 51%, 31%) |
| OKLCH | oklch(38.3% 0.137 308.8) |
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 #582779 | 10.59:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #582779 | 1.98:1 | Fails | Lc 9.9 | Not readable |
| #582779 text on white | 10.59:1 | AAA | Lc 94.0 | Preferred for body text |
| #582779 text on black | 1.98:1 | Fails | Lc -8.5 | 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
#F8F3FD
oklch(97.1% 0.014 308.3)
-
Step 100
100
#F0E5F9
oklch(93.6% 0.029 310.1)
-
Step 200
200
#E4D0F6
oklch(88.6% 0.056 308.9)
-
Step 300
300
#D4AFF3
oklch(81% 0.102 309)
-
Step 400
400
#BE81ED
oklch(70.7% 0.163 308.8)
-
Step 500
500
#AE5BE8
oklch(63.1% 0.21 308.7)
-
Step 600
600
#9A3AD6
oklch(55.7% 0.228 308.8)
-
Step 700
700
#832AB9
oklch(49.1% 0.212 308.7)
-
Step 800
800
#6B2596
oklch(42.7% 0.176 308.9)
-
Step 900
900 (this color)
#582779
oklch(38.3% 0.137 308.8)
-
Step 950
950
#331746
oklch(27% 0.087 309.2)
#582779 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) | #003D7B | 0.119 |
| Deuteranopia (no green cones) | #193F77 | 0.107 |
| Tritanopia (no blue cones) | #53384C | 0.096 |
| Achromatopsia (no color) | #3F3F3F | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #582779
#582779
oklch(38.3% 0.137 308.8)
- #324D00
#324D00
oklch(38.4% 0.102 128.9)
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 #582779, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.062
- Rebecca Purple #663399 ΔE 0.064
- Indigo #4B0082 ΔE 0.064
- Royal Purple #4B006E ΔE 0.068
- Grape Purple #5D1451 ΔE 0.074
- Blueberry #464196 ΔE 0.078
- Rich Purple #720058 ΔE 0.087
- Purple #800080 ΔE 0.088
Use #582779 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.