#582A77
Closest named color: Dark Slate Blue (#483D8B). oklch(38.5% 0.13 309.1), rgb(88, 42, 119).
Aa
White text reads best on this color (10.43:1).
About this color
#582A77 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.130 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 0.059 away. White text reads best on it, at 10.43:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.01:1 |
| White text | 10.43:1 |
Values
| HEX | #582A77 |
| RGB | rgb(88, 42, 119) |
| HSL | hsl(276, 48%, 32%) |
| OKLCH | oklch(38.5% 0.13 309.1) |
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 #582A77 | 10.43:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #582A77 | 2.01:1 | Fails | Lc 10.2 | Not readable |
| #582A77 text on white | 10.43:1 | AAA | Lc 93.7 | Preferred for body text |
| #582A77 text on black | 2.01:1 | Fails | Lc -8.8 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F9
oklch(93.6% 0.029 308.1)
-
Step 200
200
#E4D0F5
oklch(88.5% 0.054 309.5)
-
Step 300
300
#D3B0F1
oklch(81% 0.097 308.8)
-
Step 400
400
#BD83E9
oklch(70.7% 0.155 309.1)
-
Step 500
500
#AD5EE3
oklch(63.1% 0.201 309.2)
-
Step 600
600
#983FD0
oklch(55.6% 0.216 309.1)
-
Step 700
700
#822FB4
oklch(49.1% 0.201 309.2)
-
Step 800
800
#6A2992
oklch(42.7% 0.167 309.3)
-
Step 900
900 (this color)
#582A77
oklch(38.5% 0.13 309.1)
-
Step 950
950
#321844
oklch(26.9% 0.083 309.2)
#582A77 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) | #053E79 | 0.114 |
| Deuteranopia (no green cones) | #1F4075 | 0.100 |
| Tritanopia (no blue cones) | #54394C | 0.091 |
| Achromatopsia (no color) | #404040 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #582A77
#582A77
oklch(38.5% 0.13 309.1)
- #324E00
#324E00
oklch(38.7% 0.103 129.3)
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 #582A77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.059
- Rebecca Purple #663399 ΔE 0.064
- Indigo #4B0082 ΔE 0.070
- Royal Purple #4B006E ΔE 0.073
- Grape Purple #5D1451 ΔE 0.073
- Blueberry #464196 ΔE 0.076
- Rich Purple #720058 ΔE 0.087
- Purple #800080 ΔE 0.090
Use #582A77 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.