#582C80
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.138 305), rgb(88, 44, 128).
Aa
White text reads best on this color (10.06:1).
About this color
#582C80 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.138 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 0.049 away. White text reads best on it, at 10.06:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.06:1 |
Values
| HEX | #582C80 |
| RGB | rgb(88, 44, 128) |
| HSL | hsl(271, 49%, 34%) |
| OKLCH | oklch(39.5% 0.138 305) |
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 #582C80 | 10.06:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #582C80 | 2.08:1 | Fails | Lc 11.1 | Not readable |
| #582C80 text on white | 10.06:1 | AAA | Lc 92.9 | Preferred for body text |
| #582C80 text on black | 2.08:1 | Fails | Lc -9.6 | 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 900.
-
Step 50
50
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FA
oklch(93.5% 0.03 305.1)
-
Step 200
200
#E2D0F8
oklch(88.5% 0.057 305.6)
-
Step 300
300
#D0B0F6
oklch(80.9% 0.102 305.1)
-
Step 400
400
#B983F2
oklch(70.8% 0.164 305)
-
Step 500
500
#A85DED
oklch(63% 0.211 305.1)
-
Step 600
600
#943CDB
oklch(55.6% 0.229 305.2)
-
Step 700
700
#7E2CBE
oklch(49% 0.213 305.1)
-
Step 800
800
#66279A
oklch(42.6% 0.177 304.8)
-
Step 900
900 (this color)
#582C80
oklch(39.5% 0.138 305)
-
Step 950
950
#311848
oklch(27.1% 0.088 305.3)
#582C80 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) | #004183 | 0.113 |
| Deuteranopia (no green cones) | #17427E | 0.103 |
| Tritanopia (no blue cones) | #513E52 | 0.100 |
| Achromatopsia (no color) | #424242 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #582C80
#582C80
oklch(39.5% 0.138 305)
- #3A4F00
#3A4F00
oklch(39.5% 0.1 125.2)
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 #582C80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.049
- Rebecca Purple #663399 ΔE 0.051
- Blueberry #464196 ΔE 0.065
- Indigo #4B0082 ΔE 0.070
- Royal Purple #4B006E ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.084
- Imperial Purple #480CA8 ΔE 0.088
- Grape Purple #5D1451 ΔE 0.088
Use #582C80 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.