#584C8F
Closest named color: Twilight (#4E518B). oklch(46.1% 0.106 289.8), rgb(88, 76, 143).
Aa
White text reads best on this color (7.38:1).
About this color
#584C8F is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.106 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.022 away. White text reads best on it, at 7.38:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.84:1 |
| White text | 7.38:1 |
Values
| HEX | #584C8F |
| RGB | rgb(88, 76, 143) |
| HSL | hsl(251, 31%, 43%) |
| OKLCH | oklch(46.1% 0.106 289.8) |
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 #584C8F | 7.38:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #584C8F | 2.84:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #584C8F text on white | 7.38:1 | AAA | Lc 85.5 | Fine for body text |
| #584C8F text on black | 2.84:1 | Fails | Lc -16.5 | Dividers and decoration only |
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 700.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D6EB
oklch(88.4% 0.029 290.2)
-
Step 300
300
#BFBCE0
oklch(80.9% 0.05 289)
-
Step 400
400
#9F98D1
oklch(70.6% 0.083 289.7)
-
Step 500
500
#887EC5
oklch(63.1% 0.106 289.5)
-
Step 600
600
#7366B1
oklch(55.6% 0.114 290.1)
-
Step 700
700 (this color)
#584C8F
oklch(46.1% 0.106 289.8)
-
Step 800
800
#4F467C
oklch(42.9% 0.088 289.8)
-
Step 900
900
#413B63
oklch(37.7% 0.067 289.6)
-
Step 950
950
#26233A
oklch(27.1% 0.042 289.2)
#584C8F 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) | #345791 | 0.054 |
| Deuteranopia (no green cones) | #35548D | 0.052 |
| Tritanopia (no blue cones) | #4A5966 | 0.089 |
| Achromatopsia (no color) | #565656 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #584C8F
#584C8F
oklch(46.1% 0.106 289.8)
- #5C5C00
#5C5C00
oklch(46% 0.1 109.8)
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 #584C8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.022
- Dusk #4E5481 ΔE 0.038
- Blueberry #464196 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.055
- Dusty Grape #545775 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.065
Use #584C8F 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.