#582F82
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.135 303.6), rgb(88, 47, 130).
Aa
White text reads best on this color (9.79:1).
About this color
#582F82 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.135 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.043 away. White text reads best on it, at 9.79:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.79:1 |
Values
| HEX | #582F82 |
| RGB | rgb(88, 47, 130) |
| HSL | hsl(270, 47%, 35%) |
| OKLCH | oklch(40.1% 0.135 303.6) |
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 #582F82 | 9.79:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #582F82 | 2.14:1 | Fails | Lc 11.7 | Not readable |
| #582F82 text on white | 9.79:1 | AAA | Lc 92.3 | Preferred for body text |
| #582F82 text on black | 2.14:1 | Fails | Lc -10.1 | 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
#E1D1F8
oklch(88.6% 0.056 303.9)
-
Step 300
300
#CEB1F7
oklch(81% 0.101 303.2)
-
Step 400
400
#B684F2
oklch(70.7% 0.162 303.5)
-
Step 500
500
#A55FED
oklch(63% 0.208 303.7)
-
Step 600
600
#913FDC
oklch(55.6% 0.226 303.6)
-
Step 700
700
#7C2FBF
oklch(49.2% 0.211 303.7)
-
Step 800
800
#64299A
oklch(42.6% 0.174 303.5)
-
Step 900
900 (this color)
#582F82
oklch(40.1% 0.135 303.6)
-
Step 950
950
#301948
oklch(27.1% 0.086 303.8)
#582F82 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) | #004385 | 0.110 |
| Deuteranopia (no green cones) | #184480 | 0.100 |
| Tritanopia (no blue cones) | #504054 | 0.099 |
| Achromatopsia (no color) | #444444 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #582F82
#582F82
oklch(40.1% 0.135 303.6)
- #3D5000
#3D5000
oklch(40% 0.099 123.8)
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 #582F82, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.043
- Rebecca Purple #663399 ΔE 0.047
- Blueberry #464196 ΔE 0.058
- Indigo #4B0082 ΔE 0.076
- Chrysanthemum #560BAD ΔE 0.084
- Twilight #4E518B ΔE 0.086
- Royal Purple #4B006E ΔE 0.087
- Imperial Purple #480CA8 ΔE 0.088
Use #582F82 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.