#583E9F
Closest named color: Blueberry (#464196). oklch(44.6% 0.15 291.5), rgb(88, 62, 159).
Aa
White text reads best on this color (8.06:1).
About this color
#583E9F is a dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.150 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.034 away. White text reads best on it, at 8.06:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Blueberry (#464196) |
| Black text | 2.60:1 |
| White text | 8.06:1 |
Values
| HEX | #583E9F |
| RGB | rgb(88, 62, 159) |
| HSL | hsl(256, 44%, 43%) |
| OKLCH | oklch(44.6% 0.15 291.5) |
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 #583E9F | 8.06:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #583E9F | 2.60:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #583E9F text on white | 8.06:1 | AAA | Lc 87.6 | Fine for body text |
| #583E9F text on black | 2.60:1 | Fails | Lc -14.6 | 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 800.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C1B7F5
oklch(80.9% 0.087 291.7)
-
Step 400
400
#A28FF1
oklch(70.7% 0.141 291.3)
-
Step 500
500
#8D70EC
oklch(63.2% 0.18 291.2)
-
Step 600
600
#7954DA
oklch(55.7% 0.195 291.5)
-
Step 700
700
#6643BD
oklch(49.1% 0.182 291.4)
-
Step 800
800 (this color)
#583E9F
oklch(44.6% 0.15 291.5)
-
Step 900
900
#44327A
oklch(37.7% 0.118 291.2)
-
Step 950
950
#281E47
oklch(27% 0.074 292)
#583E9F 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) | #0052A2 | 0.093 |
| Deuteranopia (no green cones) | #004E9D | 0.092 |
| Tritanopia (no blue cones) | #435468 | 0.122 |
| Achromatopsia (no color) | #505050 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #583E9F
#583E9F
oklch(44.6% 0.15 291.5)
- #575900
#575900
oklch(44.7% 0.098 111.3)
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 #583E9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.034
- Rebecca Purple #663399 ΔE 0.034
- Dark Slate Blue #483D8B ΔE 0.043
- Twilight #4E518B ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.063
- Bluey Purple #6241C7 ΔE 0.066
- Blurple #5539CC ΔE 0.073
- Chrysanthemum #560BAD ΔE 0.078
Use #583E9F 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.