#583491
Closest named color: Rebecca Purple (#663399). oklch(42% 0.147 297.5), rgb(88, 52, 145).
Aa
White text reads best on this color (9.07:1).
About this color
#583491 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.147 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.029 away. White text reads best on it, at 9.07:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #583491 |
| RGB | rgb(88, 52, 145) |
| HSL | hsl(263, 47%, 39%) |
| OKLCH | oklch(42% 0.147 297.5) |
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 #583491 | 9.07:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #583491 | 2.31:1 | Fails | Lc 13.6 | Not readable |
| #583491 text on white | 9.07:1 | AAA | Lc 90.4 | Preferred for body text |
| #583491 text on black | 2.31:1 | Fails | Lc -11.9 | 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 800.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DCD3F5
oklch(88.5% 0.047 297.5)
-
Step 300
300
#C6B5F2
oklch(80.8% 0.087 297.2)
-
Step 400
400
#AB8DEB
oklch(70.8% 0.137 297.5)
-
Step 500
500
#976DE4
oklch(63.1% 0.174 297.5)
-
Step 600
600
#8351D2
oklch(55.6% 0.19 297.7)
-
Step 700
700
#6F41B6
oklch(49.2% 0.177 297.6)
-
Step 800
800 (this color)
#583491
oklch(42% 0.147 297.5)
-
Step 900
900
#4A3075
oklch(37.7% 0.114 298.1)
-
Step 950
950
#2B1D45
oklch(27% 0.073 297.5)
#583491 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) | #004994 | 0.103 |
| Deuteranopia (no green cones) | #03478F | 0.102 |
| Tritanopia (no blue cones) | #4A495D | 0.114 |
| Achromatopsia (no color) | #494949 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583491
#583491
oklch(42% 0.147 297.5)
- #495300
#495300
oklch(41.9% 0.097 117.4)
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 #583491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.041
- Chrysanthemum #560BAD ΔE 0.071
- Twilight #4E518B ΔE 0.076
- Imperial Purple #480CA8 ΔE 0.078
- Blue With A Hint Of Purple #533CC6 ΔE 0.088
- Indigo #4B0082 ΔE 0.088
Use #583491 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.