#582B7C
Closest named color: Dark Slate Blue (#483D8B). oklch(39% 0.134 306.8), rgb(88, 43, 124).
Aa
White text reads best on this color (10.23:1).
About this color
#582B7C is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.134 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.053 away. White text reads best on it, at 10.23:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.05:1 |
| White text | 10.23:1 |
Values
| HEX | #582B7C |
| RGB | rgb(88, 43, 124) |
| HSL | hsl(273, 49%, 33%) |
| OKLCH | oklch(39% 0.134 306.8) |
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 #582B7C | 10.23:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #582B7C | 2.05:1 | Fails | Lc 10.7 | Not readable |
| #582B7C text on white | 10.23:1 | AAA | Lc 93.3 | Preferred for body text |
| #582B7C text on black | 2.05:1 | Fails | Lc -9.2 | 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
#EFE5FA
oklch(93.6% 0.03 307.1)
-
Step 200
200
#E3D0F7
oklch(88.5% 0.057 307.2)
-
Step 300
300
#D1B0F4
oklch(80.9% 0.1 306.4)
-
Step 400
400
#BB83EE
oklch(70.8% 0.16 306.9)
-
Step 500
500
#AA5EE9
oklch(63.1% 0.206 306.6)
-
Step 600
600
#963DD7
oklch(55.6% 0.225 306.8)
-
Step 700
700
#802DBA
oklch(49.1% 0.209 306.9)
-
Step 800
800
#682897
oklch(42.8% 0.173 306.7)
-
Step 900
900 (this color)
#582B7C
oklch(39% 0.134 306.8)
-
Step 950
950
#311846
oklch(26.9% 0.085 306.6)
#582B7C 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) | #003F7F | 0.114 |
| Deuteranopia (no green cones) | #1B417A | 0.102 |
| Tritanopia (no blue cones) | #523C4F | 0.097 |
| Achromatopsia (no color) | #414141 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #582B7C
#582B7C
oklch(39% 0.134 306.8)
- #374E00
#374E00
oklch(39% 0.1 126.5)
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 #582B7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.053
- Rebecca Purple #663399 ΔE 0.057
- Indigo #4B0082 ΔE 0.070
- Blueberry #464196 ΔE 0.070
- Royal Purple #4B006E ΔE 0.077
- Grape Purple #5D1451 ΔE 0.082
- Chrysanthemum #560BAD ΔE 0.090
- Purple #800080 ΔE 0.090
Use #582B7C 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.