#55327C
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.122 303.1), rgb(85, 50, 124).
Aa
White text reads best on this color (9.84:1).
About this color
#55327C is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.122 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.040 away. White text reads best on it, at 9.84:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.13:1 |
| White text | 9.84:1 |
Values
| HEX | #55327C |
| RGB | rgb(85, 50, 124) |
| HSL | hsl(268, 43%, 34%) |
| OKLCH | oklch(39.8% 0.122 303.1) |
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 #55327C | 9.84:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #55327C | 2.13:1 | Fails | Lc 11.4 | Not readable |
| #55327C text on white | 9.84:1 | AAA | Lc 92.5 | Preferred for body text |
| #55327C text on black | 2.13:1 | Fails | Lc -9.9 | 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 900.
-
Step 50
50
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#E0D2F6
oklch(88.6% 0.051 303)
-
Step 300
300
#CCB3F2
oklch(81% 0.091 302.6)
-
Step 400
400
#B388EB
oklch(70.7% 0.146 302.9)
-
Step 500
500
#A166E5
oklch(63.1% 0.188 302.8)
-
Step 600
600
#8D49D3
oklch(55.7% 0.204 302.9)
-
Step 700
700
#7839B7
oklch(49.2% 0.19 302.9)
-
Step 800
800
#623094
oklch(42.8% 0.158 303.3)
-
Step 900
900 (this color)
#55327C
oklch(39.8% 0.122 303.1)
-
Step 950
950
#2E1B45
oklch(27% 0.077 302.4)
#55327C 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) | #12437E | 0.095 |
| Deuteranopia (no green cones) | #21437A | 0.086 |
| Tritanopia (no blue cones) | #4E4152 | 0.091 |
| Achromatopsia (no color) | #434343 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55327C
#55327C
oklch(39.8% 0.122 303.1)
- #3D4F00
#3D4F00
oklch(39.8% 0.098 123.3)
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 #55327C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Rebecca Purple #663399 ΔE 0.057
- Blueberry #464196 ΔE 0.058
- Twilight #4E518B ΔE 0.081
- Indigo #4B0082 ΔE 0.082
- Royal Purple #4B006E ΔE 0.089
- Grape Purple #5D1451 ΔE 0.090
- Dusk #4E5481 ΔE 0.090
Use #55327C 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.