#584289
Closest named color: Dark Slate Blue (#483D8B). oklch(43.8% 0.114 295.6), rgb(88, 66, 137).
Aa
White text reads best on this color (8.21:1).
About this color
#584289 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.114 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 8.21:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #584289 |
| RGB | rgb(88, 66, 137) |
| HSL | hsl(259, 35%, 40%) |
| OKLCH | oklch(43.8% 0.114 295.6) |
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 #584289 | 8.21:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #584289 | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #584289 text on white | 8.21:1 | AAA | Lc 88.2 | Fine for body text |
| #584289 text on black | 2.55:1 | Fails | Lc -14.0 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DBD5F0
oklch(88.6% 0.037 295.8)
-
Step 300
300
#C4B9E8
oklch(81% 0.066 295.6)
-
Step 400
400
#A693DC
oklch(70.8% 0.106 295.5)
-
Step 500
500
#9176D2
oklch(63% 0.137 295.8)
-
Step 600
600
#7C5DBF
oklch(55.6% 0.148 295.8)
-
Step 700
700
#694CA5
oklch(49.1% 0.138 295.9)
-
Step 800
800 (this color)
#584289
oklch(43.8% 0.114 295.6)
-
Step 900
900
#46366B
oklch(37.7% 0.089 295.7)
-
Step 950
950
#29203F
oklch(27% 0.057 295.7)
#584289 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) | #284F8B | 0.071 |
| Deuteranopia (no green cones) | #2C4E87 | 0.068 |
| Tritanopia (no blue cones) | #4D505F | 0.091 |
| Achromatopsia (no color) | #4F4F4F | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #584289
#584289
oklch(43.8% 0.114 295.6)
- #505800
#505800
oklch(43.8% 0.1 115.7)
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 #584289, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.038
- Twilight #4E518B ΔE 0.041
- Rebecca Purple #663399 ΔE 0.050
- Dusk #4E5481 ΔE 0.055
- Dusty Grape #545775 ΔE 0.074
- Denim Blue #3B5B92 ΔE 0.075
- Dusk Blue #26538D ΔE 0.076
Use #584289 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.