#5B5984
Closest named color: Dusk (#4E5481). oklch(48.4% 0.068 285.7), rgb(91, 89, 132).
Aa
White text reads best on this color (6.54:1).
About this color
#5B5984 is a medium-dark, muted purple. In OKLCH its lightness is 48%, its chroma 0.068 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.026 away. White text reads best on it, at 6.54:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 3.20:1 |
| White text | 6.54:1 |
Values
| HEX | #5B5984 |
| RGB | rgb(91, 89, 132) |
| HSL | hsl(243, 19%, 43%) |
| OKLCH | oklch(48.4% 0.068 285.7) |
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 #5B5984 | 6.54:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #5B5984 | 3.20:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #5B5984 text on white | 6.54:1 | AA | Lc 82.4 | Fine for body text |
| #5B5984 text on black | 3.20:1 | AA large text | Lc -19.5 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D8D8E5
oklch(88.6% 0.018 286)
-
Step 300
300
#BEBED6
oklch(80.9% 0.034 285.6)
-
Step 400
400
#9D9CC1
oklch(70.6% 0.054 286.2)
-
Step 500
500
#8584B1
oklch(63.1% 0.067 285.3)
-
Step 600
600
#6F6D9D
oklch(55.6% 0.074 285.6)
-
Step 700
700 (this color)
#5B5984
oklch(48.4% 0.068 285.7)
-
Step 800
800
#4C4A6D
oklch(42.6% 0.058 286.3)
-
Step 900
900
#3F3E58
oklch(37.6% 0.044 285.8)
-
Step 950
950
#252534
oklch(27.1% 0.028 284.4)
#5B5984 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) | #4D5F86 | 0.025 |
| Deuteranopia (no green cones) | #4C5C83 | 0.023 |
| Tritanopia (no blue cones) | #516168 | 0.060 |
| Achromatopsia (no color) | #5D5D5D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B5984
#5B5984
oklch(48.4% 0.068 285.7)
- #646131
#646131
oklch(48.4% 0.068 105.5)
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 #5B5984, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.026
- Dusty Grape #545775 ΔE 0.027
- Twilight #4E518B ΔE 0.036
- Dusky Blue #475F94 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.047
- Denim #3B638C ΔE 0.047
- Slate #516572 ΔE 0.054
Use #5B5984 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.