#551192
Closest named color: Indigo (#4B0082). oklch(37.8% 0.186 300.7), rgb(85, 17, 146).
Aa
White text reads best on this color (11.16:1).
About this color
#551192 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.186 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.039 away. White text reads best on it, at 11.16:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.88:1 |
| White text | 11.16:1 |
Values
| HEX | #551192 |
| RGB | rgb(85, 17, 146) |
| HSL | hsl(272, 79%, 32%) |
| OKLCH | oklch(37.8% 0.186 300.7) |
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 #551192 | 11.16:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #551192 | 1.88:1 | Fails | Lc 9.5 | Not readable |
| #551192 text on white | 11.16:1 | AAA | Lc 94.4 | Preferred for body text |
| #551192 text on black | 1.88:1 | Fails | Lc -8.2 | 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
#CDAFFF
oklch(80.9% 0.115 301.1)
-
Step 400
400
#B581FF
oklch(70.8% 0.182 300.9)
-
Step 500
500
#A457FF
oklch(63.1% 0.238 300.8)
-
Step 600
600
#9503FF
oklch(55.5% 0.294 300.6)
-
Step 700
700
#7E00D9
oklch(49.1% 0.261 300.7)
-
Step 800
800
#6800B4
oklch(42.8% 0.227 300.9)
-
Step 900
900 (this color)
#551192
oklch(37.8% 0.186 300.7)
-
Step 950
950
#310F55
oklch(26.9% 0.117 300.6)
#551192 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) | #003B95 | 0.122 |
| Deuteranopia (no green cones) | #003A90 | 0.122 |
| Tritanopia (no blue cones) | #473955 | 0.136 |
| Achromatopsia (no color) | #3B3B3B | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551192
#551192
oklch(37.8% 0.186 300.7)
- #3B4800
#3B4800
oklch(37.7% 0.09 120.7)
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 #551192, closest first.
No curated palette has a color within ΔE 0.04 of #551192.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.039
- Chrysanthemum #560BAD ΔE 0.045
- Imperial Purple #480CA8 ΔE 0.049
- Rebecca Purple #663399 ΔE 0.068
- Royal Purple #4B006E ΔE 0.069
- Indigo Blue #3A18B1 ΔE 0.079
- Dark Slate Blue #483D8B ΔE 0.081
- Grape #7209B7 ΔE 0.082
Use #551192 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.