#583C97
Closest named color: Rebecca Purple (#663399). oklch(43.7% 0.143 293.8), rgb(88, 60, 151).
Aa
White text reads best on this color (8.37:1).
About this color
#583C97 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.143 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.031 away. White text reads best on it, at 8.37:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.50:1 |
| White text | 8.37:1 |
Values
| HEX | #583C97 |
| RGB | rgb(88, 60, 151) |
| HSL | hsl(258, 43%, 41%) |
| OKLCH | oklch(43.7% 0.143 293.8) |
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 #583C97 | 8.37:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #583C97 | 2.50:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #583C97 text on white | 8.37:1 | AAA | Lc 88.5 | Fine for body text |
| #583C97 text on black | 2.50:1 | Fails | Lc -13.7 | 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
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#DAD4F6
oklch(88.5% 0.047 293.5)
-
Step 300
300
#C3B7F2
oklch(81% 0.083 293.8)
-
Step 400
400
#A58FEB
oklch(70.7% 0.133 293.7)
-
Step 500
500
#9170E5
oklch(63.1% 0.171 294)
-
Step 600
600
#7C55D3
oklch(55.6% 0.185 293.8)
-
Step 700
700
#6944B7
oklch(49.1% 0.173 293.9)
-
Step 800
800 (this color)
#583C97
oklch(43.7% 0.143 293.8)
-
Step 900
900
#463276
oklch(37.7% 0.112 293.9)
-
Step 950
950
#291E45
oklch(27% 0.071 294.2)
#583C97 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) | #004F9A | 0.095 |
| Deuteranopia (no green cones) | #0D4C95 | 0.091 |
| Tritanopia (no blue cones) | #475063 | 0.115 |
| Achromatopsia (no color) | #4E4E4E | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583C97
#583C97
oklch(43.7% 0.143 293.8)
- #525700
#525700
oklch(43.7% 0.098 113.6)
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 #583C97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.031
- Blueberry #464196 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.034
- Twilight #4E518B ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Dusk #4E5481 ΔE 0.079
- Bluey Purple #6241C7 ΔE 0.079
- Chrysanthemum #560BAD ΔE 0.080
Use #583C97 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.