#55478F
Closest named color: Twilight (#4E518B). oklch(44.8% 0.115 289.9), rgb(85, 71, 143).
Aa
White text reads best on this color (7.82:1).
About this color
#55478F is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.115 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.030 away. White text reads best on it, at 7.82:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #55478F |
| RGB | rgb(85, 71, 143) |
| HSL | hsl(252, 34%, 42%) |
| OKLCH | oklch(44.8% 0.115 289.9) |
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 #55478F | 7.82:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #55478F | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #55478F text on white | 7.82:1 | AAA | Lc 87.0 | Fine for body text |
| #55478F text on black | 2.68:1 | Fails | Lc -15.1 | 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 800.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F1
oklch(88.6% 0.037 289)
-
Step 300
300
#BFBAEA
oklch(80.9% 0.067 289.6)
-
Step 400
400
#9F95DF
oklch(70.7% 0.107 289.6)
-
Step 500
500
#8979D6
oklch(63.1% 0.137 289.8)
-
Step 600
600
#7460C3
oklch(55.6% 0.149 290)
-
Step 700
700
#614FA8
oklch(49.1% 0.137 289.7)
-
Step 800
800 (this color)
#55478F
oklch(44.8% 0.115 289.9)
-
Step 900
900
#42386D
oklch(37.8% 0.088 290.2)
-
Step 950
950
#262140
oklch(27% 0.057 289.5)
#55478F 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) | #2B5392 | 0.060 |
| Deuteranopia (no green cones) | #2C508D | 0.059 |
| Tritanopia (no blue cones) | #455664 | 0.096 |
| Achromatopsia (no color) | #525252 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55478F
#55478F
oklch(44.8% 0.115 289.9)
- #595900
#595900
oklch(44.9% 0.098 109.8)
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 #55478F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.030
- Blueberry #464196 ΔE 0.034
- Dark Slate Blue #483D8B ΔE 0.036
- Dusk #4E5481 ΔE 0.047
- Rebecca Purple #663399 ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.061
- Dusk Blue #26538D ΔE 0.066
- Dusky Blue #475F94 ΔE 0.066
Use #55478F 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.