#5B577B
Closest named color: Dusty Grape (#545775). oklch(47.5% 0.058 289.1), rgb(91, 87, 123).
Aa
White text reads best on this color (6.78:1).
About this color
#5B577B is a medium-dark, muted purple. In OKLCH its lightness is 48%, its chroma 0.058 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.015 away. White text reads best on it, at 6.78:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #5B577B |
| RGB | rgb(91, 87, 123) |
| HSL | hsl(247, 17%, 41%) |
| OKLCH | oklch(47.5% 0.058 289.1) |
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 #5B577B | 6.78:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #5B577B | 3.09:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #5B577B text on white | 6.78:1 | AA | Lc 83.4 | Fine for body text |
| #5B577B text on black | 3.09:1 | AA large text | Lc -18.5 | 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
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D8D8E3
oklch(88.5% 0.015 286.1)
-
Step 300
300
#BFBED2
oklch(80.9% 0.028 288.1)
-
Step 400
400
#9F9DBB
oklch(70.8% 0.043 288.3)
-
Step 500
500
#8884AA
oklch(63.1% 0.057 289.5)
-
Step 600
600
#726E96
oklch(55.7% 0.062 288.8)
-
Step 700
700 (this color)
#5B577B
oklch(47.5% 0.058 289.1)
-
Step 800
800
#4E4B68
oklch(42.8% 0.048 289)
-
Step 900
900
#413E54
oklch(37.6% 0.037 290.7)
-
Step 950
950
#262531
oklch(27.1% 0.022 288.6)
#5B577B 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) | #4E5C7D | 0.022 |
| Deuteranopia (no green cones) | #4E5A7A | 0.021 |
| Tritanopia (no blue cones) | #545D64 | 0.048 |
| Achromatopsia (no color) | #5B5B5B | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B577B
#5B577B
oklch(47.5% 0.058 289.1)
- #5F5F38
#5F5F38
oklch(47.5% 0.057 108.4)
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 #5B577B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.015
- Dusk #4E5481 ΔE 0.025
- YInMn Blue #415A77 ΔE 0.039
- Twilight #4E518B ΔE 0.041
- Dusky Blue #475F94 ΔE 0.047
- Slate #516572 ΔE 0.050
- Denim #3B638C ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.054
Use #5B577B 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.