#550B95
Closest named color: Chrysanthemum (#560BAD). oklch(37.7% 0.192 300.2), rgb(85, 11, 149).
Aa
White text reads best on this color (11.24:1).
About this color
#550B95 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.192 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Chrysanthemum (#560BAD), ΔE 0.040 away. White text reads best on it, at 11.24:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.192) |
| Temperature | in between |
| Nearest name | Chrysanthemum (#560BAD) |
| Black text | 1.86:1 |
| White text | 11.24:1 |
Values
| HEX | #550B95 |
| RGB | rgb(85, 11, 149) |
| HSL | hsl(272, 86%, 31%) |
| OKLCH | oklch(37.7% 0.192 300.2) |
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 #550B95 | 11.24:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #550B95 | 1.86:1 | Fails | Lc 9.6 | Not readable |
| #550B95 text on white | 11.24:1 | AAA | Lc 94.3 | Preferred for body text |
| #550B95 text on black | 1.86:1 | Fails | Lc -8.3 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FF
oklch(93.6% 0.036 299.7)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CCB0FF
oklch(80.9% 0.113 300.2)
-
Step 400
400
#B381FF
oklch(70.6% 0.182 300.1)
-
Step 500
500
#A358FF
oklch(63.1% 0.236 300.3)
-
Step 600
600
#940BFF
oklch(55.6% 0.293 300.2)
-
Step 700
700
#7D00DA
oklch(49.1% 0.262 300.1)
-
Step 800
800
#6700B5
oklch(42.7% 0.228 300.2)
-
Step 900
900 (this color)
#550B95
oklch(37.7% 0.192 300.2)
-
Step 950
950
#310D57
oklch(26.9% 0.122 300)
#550B95 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) | #003A98 | 0.123 |
| Deuteranopia (no green cones) | #003A93 | 0.124 |
| Tritanopia (no blue cones) | #453956 | 0.142 |
| Achromatopsia (no color) | #3B3B3B | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #550B95
#550B95
oklch(37.7% 0.192 300.2)
- #3C4800
#3C4800
oklch(37.7% 0.09 119.9)
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 #550B95, closest first.
No curated palette has a color within ΔE 0.04 of #550B95.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chrysanthemum #560BAD ΔE 0.040
- Indigo #4B0082 ΔE 0.041
- Imperial Purple #480CA8 ΔE 0.045
- Rebecca Purple #663399 ΔE 0.071
- Royal Purple #4B006E ΔE 0.072
- Indigo Blue #3A18B1 ΔE 0.076
- Grape #7209B7 ΔE 0.080
- Dark Slate Blue #483D8B ΔE 0.086
Use #550B95 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.