#5B327F
Closest named color: Dark Slate Blue (#483D8B). oklch(40.7% 0.128 306.1), rgb(91, 50, 127).
Aa
White text reads best on this color (9.51:1).
About this color
#5B327F is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.128 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.045 away. White text reads best on it, at 9.51:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #5B327F |
| RGB | rgb(91, 50, 127) |
| HSL | hsl(272, 44%, 35%) |
| OKLCH | oklch(40.7% 0.128 306.1) |
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 #5B327F | 9.51:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #5B327F | 2.20:1 | Fails | Lc 12.3 | Not readable |
| #5B327F text on white | 9.51:1 | AAA | Lc 91.6 | Preferred for body text |
| #5B327F text on black | 2.20:1 | Fails | Lc -10.7 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE6F6
oklch(93.5% 0.023 305.6)
-
Step 200
200
#E0D3EF
oklch(88.6% 0.04 306.5)
-
Step 300
300
#CCB5E7
oklch(80.9% 0.073 305.7)
-
Step 400
400
#B38CDB
oklch(70.6% 0.119 306.2)
-
Step 500
500
#A16ED2
oklch(63.2% 0.153 306)
-
Step 600
600
#8C53BF
oklch(55.6% 0.167 306.1)
-
Step 700
700
#7743A4
oklch(49.1% 0.154 306.3)
-
Step 800
800 (this color)
#5B327F
oklch(40.7% 0.128 306.1)
-
Step 900
900
#4F316B
oklch(37.7% 0.1 306.1)
-
Step 950
950
#2E1D3F
oklch(27% 0.064 305.6)
#5B327F 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) | #124481 | 0.105 |
| Deuteranopia (no green cones) | #24467D | 0.094 |
| Tritanopia (no blue cones) | #554153 | 0.093 |
| Achromatopsia (no color) | #464646 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B327F
#5B327F
oklch(40.7% 0.128 306.1)
- #3B5300
#3B5300
oklch(40.7% 0.104 126.4)
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 #5B327F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.045
- Rebecca Purple #663399 ΔE 0.047
- Blueberry #464196 ΔE 0.060
- Twilight #4E518B ΔE 0.080
- Indigo #4B0082 ΔE 0.086
- Dusk #4E5481 ΔE 0.090
- Purple #800080 ΔE 0.091
- Grape Purple #5D1451 ΔE 0.092
Use #5B327F 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.